Sky Curtain: An Initial Overview of the Immortal Lord of the Myriad Laws of the Mortal World

[In 2020, Hai Shan had already become the lord of Penglai Island, leading the abbot of Yingzhou and the three islands of Penglai to become the second largest power after the Nine Realms Gate. He himself had also become the number one supernatural being at that time. With the blessing of the Great Talent of Longevity, his strength was overwhelmingly superior.]

The world of Jujutsu Kaisen.

In the shadows of Shibuya, Gojo Satoru deftly pushed up his sunglasses, his azure eyes reflecting the words "Leading the Way with Precipice" in large characters, and the corners of his mouth curled into his usual arrogant yet charming smile.

"Oh dear, the title of 'Number One' is quite a heavy burden. But I, your teacher, understand all too well the loneliness of such a 'precipitous' fall. Before absolute power, quantity is meaningless. What Nine Realms Gate? It sounds like a boring organization that those conservative, rotten orange-like high-ranking officials like to run. It seems that this Lord of Haishan Island has also reached that realm of 'I am the only one who reigns supreme in heaven and earth.' Possessing the talent of immortality? It sounds like a cheat setting like unlimited spell power. If I could cross worlds, I would really like to arrange a time to spar with him and see if his 'immortality' is tougher, or my 'no limits' is more troublesome. However, the view from the top is indeed only for people like us to appreciate."

The world of "Painting Rivers and Lakes: The Bad Guys".

Li Xingyun, with a wine jug in one hand and his arm around Ji Ruxue's shoulder with the other, leaned against the carriage, his drunken eyes revealing a hint of the shrewdness of a commander.

"Commanding three islands, second only to that Nine Realms Gate? That's a tough job. Hai Shan, brother, I was forced into this position, while you earned your island lord status through your own strength. But I understand you; this seemingly glamorous position, where everyone is watching you, is much more tiring to hold than to lie down. 'Leading the way from the precipice'... Hey, that sounds really inspiring! We Bad Guys need that kind of ruthless spirit of not giving in to anyone! Who cares if we're second or first in the world? As long as our fists are strong enough, we can protect those we want to protect. But don't overwork yourself. Occasionally, like me, take a break, have a drink—that's life! Immortality isn't important; what's important is living life to the fullest!"

[After growing up, Hai Shan secretly took great care of the Three Truths Sect. When Duan Xinglian was studying at Xicheng Middle School, his homeroom teacher, Wu Shan, was a member of the Penglai Sect. Under Hai Shan's arrangement, Wu Shan took extra care of Duan Xinlian and her brother.]

The world of "Spare Me, Great Lord".

Lu Shu sat on the roof, peeling a boiled egg that smelled like stinky tofu while looking at the sky and ranting wildly. His negative emotions were rising rapidly.

"Holy crap! This is too unfair! What's with this 'my homeroom teacher is a relative' vibe? Not only are they arranging for someone to take care of me, but they're even from the Penglai Sect! Back when I was in the Daoyuan Class, I was on edge every day, terrified of being conscripted by that demon king named Nie Ting. Duan Xinglian and her brother are practically living the 'the principal is my cousin' scenario! Is this what they call 'having a strong backer makes things easier'? I want that kind of covert support too! Forget everything else, can you at least waive my tuition and food fees? Hey boss, do you need a younger brother? Someone really annoying... no, someone really hardworking? I can sing Twinkle Twinkle Little Star, and I can even peel apples with a flying sword. I'm begging to be taken care of, I'm begging for favors!"

The world of "Rakshasa Street".

On the streets of Rakshasa Street, Cao Yanbing carried the Ten Kings of Hell on his shoulder, snorted disdainfully, but his eyes revealed a hint of approval for this "protective" behavior.

"Hmph, this is what you call 'morality.' Although the methods used are fussy and like something a neighborhood committee auntie would do, taking care of an old friend's son is indeed what a real man should do. Xicheng Middle School? It sounds like any other lousy school, but to be able to plant spies... no, to plant protectors in a place like this, Hai Shan's mind is much more meticulous than it seems. Just like how I protect Xiao Liang, this street... oh no, that school, I'm afraid anyone who touches it in the future will die. However, if that brat Duan Xinglian can't even handle this little bit of good fortune, then he doesn't deserve to live in this cannibalistic world. Having someone protecting you is luck, but you still have to rely on yourself to survive. I hope those two siblings can understand this principle soon."

After Xing Lian was seriously injured in his battle against Shangguan Xiao, Hai Shan took him to Penglai Island and personally treated his wounds. He spared no expense in providing Xing Lian with Penglai's youth-preserving and body-strengthening elixirs, and also imparted his teachings to Xing Lian and his siblings, vowing to protect them for generations, even without any magical powers.

The world of Demon Slayer.

Tanjiro, carrying the wooden box that had long been etched into his very bones, watched Duan Xinglian being treated for his serious injuries in the scene, tears welling up in his eyes. The act of "personally healing him" struck the softest spot in his heart.

"Thank goodness...it's really thank goodness! Waaaaah! At times like this, nothing is more reassuring than encountering a good doctor or a good mentor! As an older brother, I understand all too well the heart-wrenching feeling of seeing my younger brother or sister injured! If it weren't for kind people like Ms. Tamayo and Mr. Kaizan, those of us who risk our lives in battle would have already perished. They generously shared their precious medicine and even taught us by example...they not only saved lives, but also gave them the 'Crimson Blade' to continue living in this cruel world! This feeling is the taste of pure kindness and responsibility! Mr. Kaizan, although I don't know where you are, please accept my bow, Kamado Tanjiro! To protect my sister, I will become as strong and kind as you!"

The world of Hunter x Hunter.

By the airship window, Killua stood with his hands in his pockets, a hint of envy flashing in his cool cat eyes. He had a chocolate candy in his mouth and mumbled something indistinctly.

"Tch, 'teaching by example'? This treatment is ridiculously generous. My dad and brother only know how to 'teach by example' with electric shocks and whips, saying that assassins don't need friends, only obedience. If my family had even half... no, even a tenth of that warmth, Alluka wouldn't have suffered so much. Embracing mountains and seas? That's quite a boast, but judging from how readily he took out the elixir, he must be serious. If Gon saw this, his eyes would definitely light up and he'd say, 'I want this kind of training too.' What a hassle. But, to encounter a master willing to lay bare his entire fortune to teach you, in that guy Duan Xinglian's Hunter License Exam, that's probably the biggest S-rank adventure ever."

[And surprisingly, in 2025, Hai Shan's understanding of his innate supernatural powers was even more thorough. The number of supernatural powers he learned from the hypothetical Mountain and Sea Map also increased dramatically. It can be said that Hai Shan is the embodiment of all the past masters of Penglai Island.]

The world of OVERLORD.

On the throne of the Great Tomb of Nazarick, the red light in Ainz Ooal Gown's eye sockets flickered intensely, and his skeletal jaw nearly dropped in surprise (though it didn't).

"Korewa... (This is) an astonishing setting! 'The collective of all the masters of Penglai Island throughout history'? This isn't just a simple accumulation of MP; this is the ultimate player who has mastered the entire guild's... no, the entire faction's historical skill tree! It's like I can use all the special skills of Peroroncino, Tadzi Mi, and Emerald Record all by myself! This is official cheating, isn't it? Is this the holder of a 'world-class item' from that world? 'The Hypothetical Mountain and Sea Map'—this name sounds like a skill bar plugin that can expand infinitely. I'm so envious! I still have to carefully disguise myself and constantly worry about running out of MP, while this guy has directly turned himself into a walking server! Demiurge, write this down immediately. If you encounter someone named 'Mountain and Sea Map,' prioritize diplomatic alliances and absolutely do not easily start a war! This kind of freak who is proficient in all classes is a nightmare for PvP players!"

The world of "The King's Avatar".

In a corner of Happy Internet Cafe, Ye Xiu, a cigarette dangling from his lips, flew across the keyboard as Lord Grim on the screen unleashed a dazzling combo of unspecialized characters. He glanced at the sky and exhaled a smoke ring.

"Heh, an aggregate? Isn't this just a real-life version of a max-level 'free agent'? And the ultimate form at that, one that doesn't need the Thousand Chance Umbrella to transform, where all skills can be cast instantly. Combining the strengths of many, this path is wild, but also the hardest to follow. With so many skills, it tests not only hand speed but also brainpower. That is, what we often call 'awareness.' If your awareness can't keep up, you're just a fancy little shop; if your awareness can keep up, you're the boss of the whole map. This Haishan, since he can integrate the skills of these previous generation's masters, his glory... oh no, his supernatural abilities are at least at the level of a god in the professional circle. Tsk tsk, it seems that no matter which world you're in, if you want to stand at the top, you still have to rely on this 'all-around' skill. Not bad, interesting. I want to have a match with him in the arena."

[The Law of Heaven and Earth can enlarge the user's body. Hao Guang once used this innate power to refine the Law of Heaven and Earth Talisman, a control-type innate power for hunting demons in the Six Realms, capable of sealing off enemies.]

The world of Attack on Titan.

On the walls of Paradis Island, Alan Yeager gazed at the enormous figure that vaguely appeared in the sky, his emerald pupils suddenly contracting as if he had witnessed some kind of overlapping destiny.

"Gigantification...body gigantification! Haishan, so you are one too...no, that's not a curse, it's pure power! Unlike me, who must become a monster to devour my own kind for freedom, your gigantification is 'the law of heaven and earth,' a righteous suppression! Is this what the 'giants' of the world outside the walls are like? No loss of reason, no need for self-harm, you can do it all with just talismans and supernatural powers. What enviable freedom! 'Sealing off the enemy'...If it were you, you could definitely seal off those troublesome giants, even that world that only builds walls! Haishan! Do you also want to drive someone out? If so, use those giant feet to crush all the enemies, leaving none behind—flatten them!!"

The world of "Fox Spirit Matchmaker".

On the Tushan city wall, Bai Yuechu, his mouth stuffed with colorful sticks, stared at the enormous Dharma body in the sky, his eyes almost popping out, and shouted indistinctly.

"Wow! Bigger! Super big! How much demonic power does that take to maintain? And won't my clothes tear after I get bigger? But that's not important. What's important is whether I can swallow a mountain of colorful sticks in one gulp after I get bigger? This is practically a cheat code for eating! 'Control-type innate ability'? That's great! From now on, I'll use this to block out Sister Ya Ya... no, I mean, all those customers who want to renege on their debts. Nobody can leave without paying! Brother Hai Shan, could you teach me this amazing skill? Once I learn this trick, I, Bai Yuechu, will dominate the matchmaking world... no, the mission world! Will I still have to worry about not being able to pay back that damn 100 million? Taoist brother, look at him, that's a real powerhouse!"