Thanks for the invitation. I'm in Type-Moon, inheriting the legacy of Zi-O.

"My name is Nianzhuo, the guardian of humanity. Besides, you were trying to kill Mashu just now, weren't you? A mere lancer," Nianzhuo's calm voice rang out, and then he adjusted his stance, pointing his sword at Medusa, a hint of anger flashing within it.

"My reason for defeating you is only this one!!" Nian Zhuo then flashed forward, his Limitless Sword gleaming with silver light, hurtling towards Medusa on the street with unstoppable momentum. Medusa blocked the attack with her spear tip, a flicker of excitement in her eyes, and the two engaged in fierce combat.

The clash of metal and iron, the battle of forces, unfolds once again in this space.

Diagonal slashes, downward cuts, upward thrusts, horizontal slashes... Nian Zhuo relentlessly swung his sword at the beautiful figure opposite him, but to his surprise, Medusa parried every move. Nian Zhuo continued his offensive, displaying all the techniques and skills taught to him by his master, Galahad. However, seeing Medusa's impenetrable defense, Nian Zhuo's heart tightened. Then, using the momentum of another blocked slash, Nian Zhuo turned and accelerated behind Medusa, raising his sword high and swinging it at Medusa's unsuspecting back.

"Got it—" he was about to say when a whooshing sound came, and several iron chains flew in from nowhere. Nian Zhuo's sword slashed at the chains, and seeing his surprise attack blocked by them again, a trace of anxiety flashed through Nian Zhuo's heart. His body stiffened slightly as his attack was interrupted. Then Medusa smiled sinisterly, flipped her weapon, and slammed the butt of the spear hard into Nian Zhuo's abdomen.

"Ugh!" Nian Zhuo felt a tremendous force strike him, and was then sent flying. The pain shooting through his internal organs made him realize how difficult the situation was. "It's like fighting a bunch of pythons." Just as he thought this, Medusa's figure swarmed around him like a leech, and before Nian Zhuo could even adjust his position, Medusa's hooked blade struck him in the abdomen again, sending him flying high into the air.

"Damn it!" Nian Zhuo cried out inwardly. Sure enough, Medusa leaped high into the air, a bloodthirsty smile on her lips as she swung her hooked blade. Then, with the force of a thousand pounds, she slammed it into Nian Zhuo's chest like a heavy hammer. Nian Zhuo's figure was sent plummeting to the ground, creating deep craters.

How can you lose this endgame?

"Rider!" "Mr. Nianzhuo!" Mary and Mashu's worried voices followed, and with their cries, Nianzhuo's figure emerged from the billowing smoke of the deep pit.

"Cough! Cough cough!" Nian Zhuo felt excruciating pain in all four limbs, as if her internal organs were about to shift. Then, finally remembering something, Nian Zhuo mentally shouted out her old-age reaction, "Am I an idiot? I clearly remember Lancer's real name is Medusa, and Medusa always has the skill 'Super Strength,' which allows her to reach an terrifying level of strength for a short time. No wonder she could defend against me and inflict so much damage even with her injuries. In terms of strength and agility, she has the upper hand. It seems I need to use a support tool." Nian Zhuo's mind stirred, and a strange light flashed in her hand.

"Hmph~ Still not dead? Pretty resilient~" Medusa turned around and saw the black figure emerge from the pit at Mashu and Mary's shouts. Her smile widened. "Then~ you clueless man, die!" With that, she brandished her spear, and Medusa's figure vanished in a wisp of purple light. The next second, she materialized before Nian Zhuo's figure, slashing at him with an unstoppable force.

"Ah~ Goodbye~ By the way~ What's your name again?" Medusa smiled happily. "Well~ it doesn't matter anymore~"

Blood and muffled thuds resounded once more within the chain-sealed space.

"Ah! Ahhhhh!" Medusa's figure was sent flying for the second time, crashing heavily into the spot where Nianzhuo had stood. Gravel and dirt flew everywhere, adding more wounds to Medusa's body.

But none of that mattered. Medusa stared intently at the black-clad man on the stage with her demonic eyes.

Black—or at least not now—became what everyone saw: a pink and white heroic spirit, with flowing pink hair like torches on its head and two strange fists on its hands. Green and white coexisted on its body.

The one that appeared here was Kamen Rider Zi-O Ex-Aid form.

"My name is Nianzhuo, remember that!" Nianzhuo fiddled with his weapon, feeling a surge of power coursing through his body. He was overjoyed; he hadn't expected the Ex-Aid watch face to provide such a boost. Looking at the wounded Medusa below the stage, Nianzhuo smiled slightly and placed a hand on her shoulder. Nianzhuo turned to see Yongmeng, the strongest player. Conquering this singularity must be a piece of cake for him.

Then, he clenched his right fist, striking the same pose as Emu, declaring with unwavering confidence.

"Heh! Watch me clear this in one life!" Nian Zhuo's figure flashed, moving even faster than before as he attacked Medusa. Before Medusa's incredulous eyes, Nian Zhuo arrived before her and delivered a powerful blow to her abdomen.

With the appearance of the word "hit," Nian Zhuo knew that his attack had succeeded.

"Cough! How is this possible? It was just a change of form, this power!" Clutching her abdomen, Medusa stared at Nian Zhuo in disbelief. "I... how could I possibly end here!" She cried out in despair, whipping her long purple hair around. Instantly, countless chains reappeared in the space, layer upon layer engulfing Nian Zhuo and Medusa.

"Since that's how it is! Then let's have a proper chat~" Medusa's voice, filled with murderous intent, rang out. The chain was as flexible as a snake. Medusa picked up her hook blade again, manipulating the flying chain while using her superhuman strength to swing the hook blade out.

At this moment, Nian Zhuo closed his eyes and sank into his mind. He was meditating on the boundless sea. Then, wave after wave of waves rose up directly in front of him, rushing towards him with an astonishing wind. Nian Zhuo kept his eyes closed, meditating and observing Medusa's weaknesses in his consciousness. Then, a drop of water gently dripped onto the top of Nian Zhuo's head.

He opened his eyes, and he saw it! A tiny, faintly visible point of light hidden in the waves. He stared directly at the oncoming chains and hooks, took a step back, and, recalling the location of the light, looked towards the tip of Medusa's spear.

Exactly! The flaw was right there! He lightly raised his right hand to deflect Medusa's long hook blade, then swung his fists to adjust his breathing.

Sun! A powerful punch!

"Me too! I learned so much there!" Shouting this, Nian Zhuo repelled all the attacking chains. Seeing Medusa's body stiffen from exhaustion, Nian Zhuo flashed forward and appeared before her.

"Let me finish you off with my ultimate attack, player Nian Zhuo! My NP is full!" Nian Zhuo then pressed the button on the Ex-Aid watch face, accompanied by multicolored light emanating from his fists. Nian Zhuo charged towards the powerless Medusa.

"CRITICAL TIME BREAKE!! (Critical Time Breaker!)"

He rushed towards Medusa and punched her away, sending her flying. Then, in mid-air, countless data words formed a track, linking Medusa and Nianzhuo. Nianzhuo then clenched his fists and charged towards Medusa.

"Bang—" It was the severely injured Medusa, beyond saving, who collapsed to the ground. Nian Zhuo, naturally, also landed normally, deactivating his Ex-Aid transformation.

"Game over. You're finished, Medusa." Nian Zhuo uttered these words softly as he watched Lancer gradually dissipate into black particles.

"Ah, our great undertaking will never end, drifter, you will eventually meet the invincible king," Medusa (Lancer) replied, and then vanished.

In another corner, Another Rider Build spotted the figure, converted the previously collected Caster's Noble Phantasms into two bottles, and swallowed them.

"My king, wait a moment, I...I'll go kill you right away." (Strange statement)

Everything fell silent again.

The dragon slayer will eventually become a dragon.

"Hoo—" Letting out a long breath, Nian Zhuo watched Medusa disappear into black particles of light. He could finally breathe a sigh of relief. This battle was his first deathmatch, a fight where both sides relied on their skills, weapons, and abilities to kill each other. In the end, he was the one who stood last.

"But, the invincible king of darkness..." After a few seconds of contemplation, Nian Zhuo pondered the meaning of Medusa's last message. "It should refer to Saber Altair in the Great Void. Possessing the power of the Greater Grail, she is undoubtedly the invincible king. Does that mean my current abilities are inferior to hers?" Nian Zhuo shook his head, but the impact that hadn't yet come from behind interrupted his thoughts.

It was Director Mary. This girl had been incredibly excited ever since she saw Nian Zhuo defeat Medusa, and now she jumped up from behind and wrapped her arms around his neck. "Hmph~ I knew my Servant was the strongest! That kind of Heroic Spirit was no match for her!" It was as if she wasn't the one who was worried when she saw Nian Zhuo being knocked to the ground, but Nian Zhuo's response remained calm and composed.

“Mary, I didn’t win that battle honorably,” Nian Zhuo explained, his tone tinged with seriousness. “The battle took place under completely unequal conditions of information. Lancer was injured by my sneak attack, and I even revealed the characteristics of her Noble Phantasm. Furthermore, because she is a Shadow Servant, she couldn’t unleash the true name of her Noble Phantasm. On the other hand, on our side, I was simply…” He deactivated his Zi-O form, moved the director in front of him, and gently embraced her.

"I'm sorry, thank you for agreeing to contract a worthless servant like me, Mary." "Hmph~ It's your honor to become my servant, so don't you dare belittle yourself, do you hear me?" Mary pinched Nian Zhuo's cheeks with both hands, raised her head and looked directly into Nian Zhuo's eyes, her smile as radiant as a flower.

"Thank you, thank you so much, Director." With a forced smile, Nian Zhuo was absolutely smitten with this arrogant director. However, unbeknownst to him, a black sprout quietly emerged from the seed of yearning for power within his heart.

Seeing the pink atmosphere between Nianzhuo and the director, Mashu's eyes also turned slightly jealous.

"It's a pity I didn't get it first..." he muttered.

"Kid, I don't think you need to feel so weak here," a male voice said. However, when the four looked up, they were all alone. Then, the light began to distort, and streaks of blue particles emerged from the air, followed by a blue-haired man.

"Hello," the blue-haired man greeted the three people except Nian Zhuo, then looked at the indifferent Nian Zhuo. "Looks like this young man already anticipated this. What, aren't you going to attack?"

“No need,” Nian Zhuo replied. “I can’t sense any of those shadow followers’ aura from you. Besides, judging from your clothes, the staff you’re holding, and the long robe with its fur hood, you’re clearly a Caster’s Heroic Spirit. The fact that you’re willing to appear before us means you have no hostility towards us; otherwise, you should have started with three magic cannon shots.” Nian Zhuo sized up the Caster in front of him, recalling the information about this man in his mind. Nian Zhuo’s guard against him lowered somewhat, after all, it was an undeniable fact that mages were not suited for close combat.

(A certain Uruk Axe King, Avalon Sword Saint, and Israeli Fighter King sent question marks)

"Hehehe, you're quite an interesting kid. They say your name is Nianzhuo, and you're traveling with a bunch of beautiful women. You're quite the ladies' man, kid," Caster said, stroking his chin and looking at the three who had moved to Nianzhuo's side almost as soon as he appeared, his tone teasing. It was as if he saw his own past, the Celtic bulldozer, reflected in him.

"Ah, thank you for understanding. So, could you please stay away from these cute girls?" Nian Zhuo pulled the three of them into a hug, ignoring Ritsuka's surprise and the other two's blushing. He spoke with a serious, threatening tone, "We don't know if you're friend or foe, so please stay away from them. Thank you." Looking at Caster's wide-eyed astonishment, Nian Zhuo felt a small sense of accomplishment. Unexpectedly, the man simply put one hand on his face and burst into laughter.

"Hahahaha! Kid, you're really something. Well then, let me introduce myself properly." The blue-haired man stepped in front of everyone. "I'm a Servant, class Caster. For some reason, I'm currently on the opposite side of those Servants. While you can't say the enemy of my enemy is my friend, please trust me now." He scratched his blue hair; a serious Caster is quite handsome, but his actions earlier had left everyone with the impression of...

"He's just a middle-aged man who sexually harasses people," the director sighed helplessly. Just then, Roman's communication from Chaldea came through. After a moment of distortion, the doctor appeared on the screen, then looked at the blue-haired Caster and sighed as well.

"Let's ask about the situation first... He seems to be a normal Heroic Spirit..." However, Caster seemed very interested in the remote call. "Is this a magical means of communication?" Seeing Caster initiate the conversation, Roman on the other side of the screen bowed to him and then asked, "Nice to meet you. Although I don't know which Heroic Spirit you are, so we..." "Let's skip the opening lines," Caster interrupted the doctor's self-introduction. "Just say what you need to say. You're good at this kind of thing, aren't you, you coward?" Ignoring the doctor's surprised eyes on the screen, Caster immediately showed his traditional dislike for the doctor.

"Wheelchairs..." The doctor really wanted to complain, but after thinking for a while, he gave up.

Although I was very unhappy, I didn't have any reason to refute it.

Who are you?

"So, you're the Servant who participated in the Holy Grail War in this city, and the only survivor, right?" The doctor's voice came from the screen, carrying a slightly mechanical quality, but the tone still indicated that the doctor was referring to Caster as the victor of that Holy Grail War, thus surviving.

(Don't worry, it's impossible for the big dog, doctor.)

“If we’re talking about winning and losing, then I certainly didn’t lose,” Caster said, gazing at the burning buildings in the distance, his thoughts drifting back to the battlefield where they had fought. “But somehow, our Holy Grail War changed its nature,” Caster’s tone shifted, solemnly recounting how things had developed into their current state.

"It's changed?" Director Mary asked, looking puzzled. The Holy Grail War was simply a ritual where Servants fought each other to determine the winner and obtain the Holy Grail. How could such a seemingly simple and easy-to-understand magical ritual have changed? As a magician who had been immersed in magic since childhood, she really didn't understand.

(It just doesn't have the same feel to it, like, if you could do it all over again, would you still love me?) Twisting her hips, her mind wandered with random thoughts...

“I don’t know the details either,” Caster recounted earnestly. “Anyway, the city was engulfed in flames overnight, and all humanity vanished, leaving only Servants. Saber was the one who reignited the Holy Grail War, and she stirred up trouble everywhere she went, like a fish in water. Saber personally dealt with Archer, Lancer, Rider, Berserker, and Assassin.” Simplifying the account of Saber single-handedly defeating six Servants, Caster’s tone became threatening. “The Servants she defeated will be corrupted by the black mud, just like Lancer did.” Then Caster’s tone softened, with a hint of pride, as she said, “Before I met you, the black Rider and Assassin had already been dealt with.” Needless to say, it was Caster who had single-handedly taken down two Servants. “As for Berserker…” Caster paused for a second, seemingly disliking the berserker. “If we don’t provoke him, he won’t attack us.”

"Then all we need to do is defeat the remaining Servants..." Gudako interrupted Lancer's thoughts, because now that the situation was clear, there was only one thing left for them to do.

"The Holy Grail War is over." Facing the orange-haired girl's orange eyes, Caster's crimson eyes also held a serious expression. "Singularity F might be perfectly resolved, right? Do you know where Saber is?" Director Mary, legs crossed, calmly looked at Caster, subtly nudging Nian Zhuo, who was performing a strange dance beside her. Director Mary understood that the crucial moment was approaching.

"Ah, I know," Caster turned to look at the distant part of the city, at that black mountain that, though devoid of flames, was even more terrifying and despairing than the scorching hell before him. "She is guarding the heart of this city."

"That corrupted Greater Grail!" A surge of battle intent rose within Caster. She could almost see the dark queen standing on the ground in the Great Void, with the nameless heroic spirits guarding her behind her.

"I'll figure out what to do with Archer," Caster told the Chaldea group behind him, his overwhelming fighting spirit bursting forth. "I have to settle things with that guy properly."

"Are you really going to help us?" Mary still felt a sense of unreality towards the unfamiliar Servant before her. Currently, the only combat-capable members of their party were Nian Zhuo and the Demi-Servant Mash, and Mash's power wasn't enough. If the Servant before her suddenly betrayed them, it would be a devastating blow to Chaldea. "You have almost no idea about our situation,"

"It's okay. Don't worry about it," was Caster's hearty reply.

Thus, Mary, Ritsuka, Mash, and Nencho from Chaldea, and the Heroic Spirit Caster from the Singularity, temporarily formed an alliance.

"Come on, little girl, how about we shake hands as proof of our alliance?" Caster extended his hand to Ritsuka with a smile. His Celtic habits had unconsciously led him to start harassing other girls again.

"Ah, of course..." Ritsuka also reached out her hand, and just as their hands were about to grasp each other.

A fiery meteor, rising from the ground not far away, crashed heavily onto the school's rooftop.

Smoke

I am?

A massive fireball swept across the rooftop, creating a huge crater, and the billowing smoke obscured any visible figures.

"Cough! Cough cough!" Ritsuka was coughing, her face covered in soot, while Nianzhuo carried her on his shoulder like a sack of potatoes. Nianzhuo was carrying Mashu in one hand and the Director in the other. Although both looked disheveled, they weren't seriously injured, but Mashu's shield had disappeared. Caster was standing not far away, but the torn hem of his robes indicated that he had also suffered some mishap. However, Nianzhuo and Caster didn't have time to check their own situation or the others'. They both looked towards the deepest part of the smoke, where a powerful reaction was taking place.

“There was no magical reaction on his body, otherwise we wouldn’t have been able to detect his attack so late.” Caster discovered after investigating that the reaction at the center did not contain magic. Otherwise, how could Caster, who was good at reconnaissance and magic, not have been able to detect him?

"Hmm," Nian Zhuo responded briefly, but he already had some guesses about the identity of the figure in the smoke. "An existence that doesn't exist in the original story. I can feel the connection between him and me, so this is the enemy of the mission target???" He muttered softly, taking out the Time-Space Driver first. No matter what the enemy is, he needs to have basic combat capabilities first.

"Time Driver—" "ZIO—" "Rider Time—"

"Henshin!!" A skillful transformation, Nen Zhuo

With a single punch, the wind pressure swept away the thick smoke at the center.

"Hey!" Upon seeing the figure standing in the center, Nian Zhuo's eyes widened in disbelief. "How is this possible! This, this is!"

Caster was equally astonished; he immediately recognized the figure as the monster who had withstood his Noble Phantasm unscathed. "I clearly shook him off, how could this be..."

Yes, that streak of fire and meteor was Another Rider Build. With his blue and red paint scheme, black battle-damaged driver, and a clenched right hand, Build turned to look at the two people present, then revealed a smile—a chilling smile, the corners of his mouth widening into a gaping grin. He stared intently at Nian Zhuo, slowly taking two steps closer. "I... my king, ah... I am Build, your knight," he said, extending his hand as if to rejoin Nian Zhuo's ranks.

Unexpectedly, Build unleashed a massive fireball, instantly forcing Nianzhuo and Caster to retreat at breakneck speed. The flames, carrying terrifying heat, flew straight towards Nianzhuo.

"Tch...was this guy sent by my future self?" After cursing his future self a couple of times, Nian Zhuo instantly summoned the Time Limit Sword, then slightly crouched down and crashed into the massive fireball.

"That kid!" Caster clicked his tongue unconsciously as he watched Nianzhuo's figure engulfed by the fireball. "Even I would be seriously injured by that power. I hope that guy doesn't get too badly hurt." Caster then turned around, raised his staff, and was about to face Build when he noticed that the monster's eyes were flashing as it stared at the fireball, as if it were expecting something.

Then, a light flashed within the sun disc.

The fireball was sliced ​​horizontally. Colorless sword energy surged out, like a colorless moon, yet radiating a chilling aura. After slicing through the fireball, its momentum undiminished, it flew straight towards Build. Then, a tremendous force struck Build's abdomen, instantly blasting the blue-red monster into the wall, where it erupted with spiderweb-like cracks.

"Phew—" After moving his body a little, Nian Zhuo felt surprisingly relaxed. "Sure enough, the sword intent I created during that time with Master Galahad is quite useful." While Nian Zhuo was still immersed in the thrill of the moment, he found that his neck had been hooked.

It was Caster. The man had his arm around Nian Zhuo's neck and was laughing heartily. "Hey kid, is that considered weak? That was sword energy just now, right? You can actually unleash sword energy and stuff, isn't that super cool!" Nian Zhuo could only helplessly purse his lips upon hearing this. Caster's overly familiar personality annoyed him, but actually, he didn't dislike people like that that much.

"Don't let your guard down, Caster, that guy isn't dead," Nian Zhuo instructed Caster. He then raised his sword, gathering wind within it, preparing to use "Dance of Chaos in the Sky" once more to finish off the enemy and inflict more damage. Caster, in turn, waved his left hand, and several runes appeared in the air.

Inherited from the Queen of the Shadow Kingdom, a certain purple-haired beauty's divine runes, powerful magic created by Odin. Everything awaits that monster to emerge from the wall.