[Beast Taming + Gu Insects + Assassin Type + No Female Lead + Decisive Killing + Cannot Transform + Cthulhu + Lone Wolf + Numerous Trump Cards...]

(No system, but it has cheat codes!)

A bizarre invasion has occurred, with ten evil kings emerging, plunging the continent into peril!

Chen Fei, still a freshman in college, obtained the Killing Codex, which allows him to quickly improve the strength, aptitude, and skill proficiency of monsters simply by killing.

Restriction: Only Assassin-type monsters can be contracted.

(The "Assassin" attribute is not a class!)

[The Myriad Poison Gu: Can use a variety of toxins to unleash a Zerg catastrophe!]

【The Ghostly Fox: Possesses three magic systems: soul, illusion, and dreams; kills without a trace.】

[Hidden Void Skeleton King: A combination of necromancy and spatial manipulation, allowing for assassinations with unparalleled freedom of movement!]

[...]

Classmates and friends: "No way, we haven't even graduated yet, and you can already beat up the Evil King?"

"No, we haven't even graduated yet, and you've already ascended to heaven?"

...

This book is also known as: My Pet Beasts Are All Natural Disasters!

Beast Taming: Starting with a Gu Poison and a Cheat Code

"Beep~! Hunting Evolution System bound successfully!" "Beep~! Hunting Evolution System is being eroded by unknown rules and is undergoing unknown changes...!"...Then, the system boss collapsed! A newbie who transmigrated and was reborn as a little white snake luckily inherited the legacy of the system boss and discovered that not only could he continue to evolve, but he also gained a new ability to fuse with the characteristics of other creatures...!

[No female lead] [Slytherin] [Decisive and ruthless] [Snake]

Good people often have short lifespans.

If we're going to do it, let's be a scourge that wreaks havoc on the region!

He traveled to the Harry Potter world and became the last bloodline of the Prince family, a blood relative of Snape!

Alan Prince vowed never to be a good person in his life, but incidentally saved Snape from his tragic fate.

Some people say he's just a child with a bad temper.

Some people say he is a dark demon king who wreaks havoc in the region.

But many more people see him as the salvation of an ordinary wizarding family and a great man who led the magical world forward.

But all Allen wanted to say was that he was just an ordinary wizard, at most with a bad temper.

P.S.: What kind of normal person could a child raised by Snape be?! (Snape: He's slandering me!!!!)

The synopsis is weak, so I'll move the main text. There's a decent Harry Potter fanfiction as a base, so feel free to use it.

[Decisive and ruthless + speedrun + overwhelming victory + satisfying read + fast pace]

[Host detected sunbathing; Nine Yang Divine Skill proficiency +1...]

[Congratulations, host, on mastering the Nine Yang Divine Skill to perfection.]

[Host is currently throwing a punch; Heavenly Emperor Fist proficiency +1...]

[Congratulations, host, on mastering the Heavenly Emperor Fist to perfection.]

[Host is currently singing Thunderclap; Nine Heavens Thunder Control Technique proficiency +1...]

[Congratulations, host, on successfully cultivating the Nine Heavens Thunder Control Technique to perfection.]

...

Transmigrating to a world of high-level martial arts where spiritual energy is reviving, Lu Chen awakens an invincible simplified system.

Any martial arts technique can be simplified to its extreme, making it easy to master.

So while others were struggling to compete, Lu Chen easily improved his cultivation and crushed the geniuses of various races in the starry sky.

Starry Sky Prodigy: "I don't know, he just used his ultimate move and killed me instantly!"

Calamity Beast: "When I saw Lu Chen appear, I knew I was doomed!"

The Great Xia Guardian: "The martial arts I've cultivated my whole life, Lu Chen mastered in three seconds!"

Those of his peers who witnessed this were completely devastated.

"We've been training like crazy, but we can't even see Lu Chen's back anymore?"

Lu Chen: "I've met many geniuses, but they all call me a genius!"

[System + Daily Check-in + Personal Space + Invincibility + Survival Strategy]

Ye Xing transmigrates to a world of immortals and heroes, where he learns that a sect on a mountain is recruiting disciples. However, due to his poor aptitude, he is assigned to work in a mine, where he unexpectedly activates a supreme system.

Activating the scan function allows you to view detailed information about people or items.

The system space is activated, offering unlimited space for storing items, planting, or raising spirit beasts.

Activating the concealment function allows you to hide yourself, shield yourself from heavenly secrets, and conceal your realm.

The system check-in feature is now activated; you can check in once a month.

Ding! Successfully checked in and obtained the cultivation technique: Chaos Undying Technique.

Ding! Successfully checked in and obtained the innate treasure, the Chaos Bell.

…………

Years later, the demon race, allied with the dragon race, attacked the human race. On the battlefield, Ye Xing descended from the sky, a black hole appearing behind him, and laughed wildly, saying, "A bunch of food, how dare you be so arrogant!"

In an instant, all the enemies on the entire battlefield were swallowed up.

As the demon immortals descended to the mortal realm, they all perished. Ye Xing wiped his mouth and said, "Your taste is quite good; you truly are immortals."

[Warnings!!! 1. Each level of card has a certain power limit. Don't say things like "Tyrannosaurus Rex is so big it can easily sweep through martial arts." That's weak. If it could just sweep through, what would I write? 2. The author has subjective preferences regarding the cards. Suggestions are welcome, and I'll use them if they're good. Please forgive me if you feel they're inappropriate. Everyone has their own likes and dislikes, and not everyone can be on the same page.]

This is a world where everyone is a card master.

Once everyone reaches adulthood, they will be bound to a card master system, where they can buy cards or create their own.

The emergence of this system has severely impacted the development of the world.

The world's anime and novel culture is extremely lacking.

Even though the system has been around for decades, most people are still using decks from a century ago.

And so he came.

"Your martial arts deck is very strong, but what if my mechanics are superior to yours?"

Have you ever seen a Digimon that can evolve continuously?

"Or perhaps it's the Big Bad Wolf we can study, or Naruto who can create infinite clones and summon the Nine-Tails after death?"

Lin Li transmigrated, becoming the lowest-ranking Yin Corpse in the Yin Corpse Forest. Fortunately, he awakened the Reincarnation Disc, but could only reincarnate within the bloodlines of demons. Born a demon life after life, I will pursue the Dao in demon form! Each time I encounter a new spirit beast bloodline, I can absorb it. Death is not the end, but a new beginning—from Yin Corpse to Spirit Fox, from Flood Dragon to Golden Roc… the bloodlines of all races are my ladder to immortality. While others fight tooth and nail for a single lifetime on the path to immortality, I have already reincarnated a hundred times, traversing countless demon bloodlines. This time, I will see what kind of scenery lies above the nine heavens!

This book, also known as *My Pokémon's Destiny Leads to Godhood*, *When Destiny Descends Upon the Pokémon World, I'm Invincible*, and *My 365 Unspeakable Secrets with Cynthia*, is set in a world where Pokémon, reality, and anime merge. Li Huowang transmigrates to this world; his father is an Elite Four member, his mother a PhD, and his sister a top-tier PhD student. Not only is he born into privilege, but he also awakens a Destiny Blessing System. If his Pokémon has a high enough compatibility with a particular destiny, he can help it achieve that destiny. From the start, he sets the pseudo-legendary Tyranitar on a path of destruction! A million-ton punch, shattering mountains and rivers! An earthquake, easily triggering a tsunami!! Gengar embarks on a path of joy, practicing happiness, playing in the world! Gardevoir embarks on a path of wisdom, condensing intelligence, illuminating illusion! Several years later, when that Pokémon god descends to start a world war... Looking at the Tyranitar that easily obliterates Giratina with a single blow... the Pokémon gods ⊙▃⊙: Wait... who among us is the god?

I Have Plan! Cass, who transmigrates to a world of swords and magic, discovers that by eating mushrooms and generating inspiration, he can complete all sorts of bizarre plans, becoming the idea king of the Sorrowful Mountains. [My great-great-great-grandfather was actually a talkative goofball!] [Damn arranged marriage, what does it mean a werewolf is my wife?] [No one in this world knows more about alchemy than me!] [I know more about astrology than any prophet!] [I'm thinking of sending a succubus to all the unmarried young men in the tribe, to stop them from always getting horny and fighting each other!]... "I just want to be a happy, carefree warrior, drinking, singing, beating up Southerners, goblins, drow sprouts, liches, dragons... and playing a staring contest with Medusa every day." "I'm just a barbarian with only 5 intelligence, so what if I like to think? Just because I was fooled by the gods and spirits, I have to become a great shaman?"