Card Kingdom: This kid's codex is full of gold

"Junior, do you remember me? If not, that's okay. Just leave me your phone number."

When Xu Xiaolan saw the handsome Zhang Yun approaching, she almost drooled. Just as she was about to take out her phone to ask Zhang Yun for his number, Zhang Ya slapped her away.

"Zhang Yun, who is this?" Teacher Zhou Na asked curiously.

"She is my cousin Zhang Ya, a senior in high school."

Zhang Yun then pointed to Zhou Na beside her and introduced her to Zhang Ya: "Cousin, this is the homeroom teacher I mentioned to you before, Ms. Zhou Na."

"She's going to take me into the underground palace."

"Hello, Teacher Zhou Na!" Zhang Ya greeted her with a smile immediately.

She had heard from her cousin that this teacher was terrible; he lectured like he was sleepwalking, and even had to use a steamed bun to teach. He was considered the worst teacher in the entire teaching profession.

Seeing that she was willing to take her cousin into the underground palace, she could be considered a good teacher, so Zhang Ya naturally had to give her a friendly smile.

"Hello, Zhang Ya, it's a pleasure to meet you." Teacher Zhou Na smiled and nodded, her smile extremely friendly.

Zhang Yun looked Zhang Ya up and down, noticing the frost still clinging to her cuffs, and asked with concern, "Cousin, what are you doing here? Are you exploring the underground palace?"

"Uh-huh!"

Zhang Ya raised her pretty face, her tone slightly smug: "I just cleared the underground palace, it was just me and Xiao Lan!"

Xu Xiaolan leaned closer again, excitedly saying, "Junior, your cousin is getting better now and can easily clear the first two levels of the Frostwolf Dungeon."

"If you need to team up for dungeon runs in the future, just find her!"

"Cousin, Xiaolan is right. If you ever team up to explore the dungeon, remember to ask me to help you. I guarantee you'll clear the first two levels!"

Zhang Ya, who had suddenly become incredibly strong, couldn't contain her pride and patted her chest to assure everyone.

Upon hearing this, Teacher Zhou Na looked at Zhang Ya with some confusion.

She wondered if she didn't know her cousin's abilities...

This guy is the kind of person who can kill a Silver Minotaur with a single punch. He can clear the first two levels of the dungeon by himself without any problem, so why would he need someone to carry him?

Not wanting to refuse his cousin's kindness, Zhang Yun nodded and smiled, "Okay, I'd like to team up to raid the dungeon next week, so I'll come find you."

"I'll have my teacher guide me through the process today."

"Yes, I'm relieved to have Teacher Zhou to guide you."

Zhang Ya suddenly remembered something, took out the newly obtained Silver Dire Wolf Card from the Codex, and handed it to Zhang Yun.

"for you."

"What is it?"

Zhang Yun took a look and saw that it was a Silver Frost Wolf Card. He knew without a doubt that this was a card his cousin had just gotten from the underground palace.

"Cousin, this card..."

"Take this card and use it to make a contract."

Zhang Yaxiu waved her hand and declared confidently, "My cousin, I'm now strong enough to solo the first two stages of the dungeon! I'll get even more powerful silver cards in the future!"

"Take this one for now, I'll give you a better one later!"

Zhang Yun looked down at the silver-white card in his hand, a warm feeling welling up inside him...

He knew perfectly well why his cousin had suddenly become so strong. He didn't say anything more, but simply put the card into the codex.

"Thank you, cousin."

"Don't mention it, we're family."

Seeing that Zhang Yun didn't refuse, Zhang Ya's face was filled with a sense of accomplishment. She patted Zhang Yun on the shoulder and instructed, "Remember to look me up next week when we team up to raid the dungeon."

"With me leading the way, I'll make sure you get through the underground palace unharmed!"

"Okay, I understand!"

Zhou Na stood to the side, her lips twitching uncontrollably.

It seems that Zhang Ya is completely unaware of her cousin's abilities...

If she had known even the slightest thing, she would never have said those words...

However, these were all private matters between Zhang Yun and his cousin, and as a teacher, she couldn't be bothered to bring them up...

She glanced down at her watch; it was almost noon. She coughed lightly to remind her:

"It's getting late, Zhang Yun, let's hurry up and enter the underground palace."

Zhang Yun nodded and said goodbye to Zhang Ya, "Cousin, I'm going into the underground palace."

"Yes, be careful."

Zhang Ya gave a few words of advice, then bowed deeply to Zhou Na, saying, "Teacher Zhou Na, I'm entrusting my cousin to you."

"Don't worry, I'll lead this kid out of the underground palace unharmed."

After saying that, she beckoned Zhang Yun to come forward, and the two of them placed their hands on the boundary marker together.

Since it was his teacher, Zhang Yun didn't need to hide anything and used his real name directly.

As a light appeared, the two disappeared simultaneously in front of the boundary marker.

At this moment, Xu Xiaolan came over and tickled Zhang Ya's armpits, teasingly saying, "Well, Ya Ya, you're actually an orthopedic specialist!"

"They didn't give the silver card to their younger brother, but instead gave it to their cousin first. They said, 'Have you ever had experience with orthopedics?'"

Get lost!

Zhang Ya dodged her best friend's clutches and laughed, "My brother is still young, it's okay to use a weaker card first."

"My cousin will be taking the college entrance exam in two years. How will he keep up with everyone else's studies if he doesn't have any powerful cards?"

"Tch, keep trying to hide it, I know everything anyway!"

"Okay, okay, stop fooling around. Let's go eat first, and then we'll go to my brother's school. I want to give him a surprise!"

"My brat gave me a hard time all night yesterday because I didn't buy him a card. I'm going to show him my Bronze Dire Wolf card later, and he'll be begging me to kneel down and sing 'Conquer!'"

"Hehe, come on, let's go catch your little brother and play with him."

The two best friends laughed and joked as they hurried towards the school cafeteria...

...

They were teleported into the underground palace.

The biting cold arrived as expected, making Zhang Yun and his companion shiver.

Zhang Yun stretched his shoulders, and the slime tyrant on his shoulder rolled over, finding a more comfortable position to continue sleeping.

Skeleton Kaka stood beside him, holding an alloy longsword, its soul fire burning quietly.

As Zhou Na summoned the Bronze Codex, she smiled smugly and said, "Zhang Yun, summon your main card beast."

"Teacher's monster is a mutated silver one. If you don't go all out, you won't get a chance to fight any of the monsters in the entire dungeon."

"My main Kakamon has been summoned."

Zhang Yun pointed to the little skeleton in front of him: "My main card beast is this little skeleton. It's enough for it to race against your card beast."

Teacher Zhou Na frowned and said, "Where's your Silver Naga? Aren't you going to summon it?"

Zhang Yun shook his head: "The Silver Naga is just my secondary card, I don't want it to take away my experience."

"Then what's with the slime on your shoulder?"

Teacher Zhou Na pointed to the little slime perched on his shoulder and reminded him, "If you don't put this little thing away, it will also take away the monster's experience points."

Zhang Yun smiled and said, "It's also my master Kaka Beast, and I want to train it."

"Are you crazy?! A slime as the master of Kakamon?!"

Just as Zhou Na was about to lecture Zhang Yun, a notification sound suddenly rang in her ear:

[Ding! Given that your team includes a summoner who has cleared the dungeon multiple times, this challenge will trigger a difficulty adjustment.]

[Corrected: All team members' combat power is reduced by 25%, and the combat power of all guardian beasts in the dungeon is increased by 25%.]

[Ding! You have entered the first part of the Frostwolf Dungeon.]

[The first wave of gatekeeper monsters is about to spawn—20 Fanged Dire Wolves (Bronze tier).]

Prepare for battle!

Teacher Zhou Na: ? ? ? ? ?