This book has nothing to do with the Paramecium on the cover. I was too lazy to draw a picture so I just found one randomly.

My name is Fan Xingyu, an ordinary office worker in the 21st century

But when I came home one day

Suddenly I felt something hit my head

When I woke up again, I found that I had become...

Don't bother me with the settings, they were broken from the beginning! ! ! ! !

Pendragon, who died from exhaustion after staying up all night drawing cards, finds himself reborn into the body of his waifu—"Mysterious Heroine x Alt"! Current progress: Marvel Cinematic Universe (Completed) — Tokyo Ghoul (Modified) — Fuyuki City (Modified) (Completed) — Academy City (Reversal) (Updating)

[Under One Person + Gender Change + Fireworks (The Ultimate Venomous Fun Person) + Extreme Joy + No CP]

Just because of seven consecutive fireworks, Luo Yun was sent directly to the world of "under one man" by the God of Fun Aha. He changed from a 185cm male college student with abdominal muscles to a 145cm little loli who looked like Fireworks. He was also bound to the Chosen Fun Person System. As long as he played the role of Fireworks and gained pleasure, he could unlock new abilities and continuously improve his strength.

Thus, a quirky girl, an outstanding drama master, and a dangerous masked fool appeared in the alien world. She was not interested in wealth, status, and power. The only thing that made her take action was [fun].

She fooled Zhang Chulan, played tricks on everyone in Quan Xing, and even made the Ten Lords dizzy. She gained endless joy from the grand dramas she directed, one after another.

Zhang Chulan: "Hua Huo, you are not a human! Give me back Pella!"

Xia He: "Damn it! Why is Hua Huo prettier than me?"

Wang Ye: "This girl is really good at playing games. She even deceived herself!"

…

Playing Hanabi? No! From now on, I am Hanabi!

What is joy? I am joy!

Ahahahahahahahaha!

Ahahahahahahahahahahahahaha!

[Star Iron + Star God + No Female Lead + Weird, the protagonist's presence is weak, please be gentle if you don't like it] After traveling through time, Shen Li obtained the railway fusion system and came to a world full of weirdness.

There is no Star Iron or Mihoyo here, but there are strange invasions and stubborn resistance from humans.

From then on, the style of this world began to gradually collapse from the appearance of fate~

[Some of the characters may be OOC, please be gentle if you don't like it. qwq]

(Cover from: Xiao Zhuozi, authorized)

After traveling to the world of Honkai Impact 3rd, Lin Xi is bound to a "Seele Simulator." By successfully conquering or rewriting the fate of plot characters in various simulations using Seele's persona, the host will receive character-specific talent rewards. However, if the simulation's evaluation is too low, the host will not only be locked out of the relevant scenario, but will also be forcibly bound to some "strange" talents after the simulation ends. As the simulation progresses, one beautiful girl after another falls for Lin Xi's Seele persona. So... Alicia: Seele, when will our wedding be scheduled? Mebius: Let's do something fun, sweet little Seele. Big/Small/Honkai Impact 3rd: Seele! Bronya finally found you! Let's get married! Kiana: Seele is truly gentle and adorable! Lin Xi, while posing as Seele in the simulation to reap the benefits, is completely unaware that she has completely taken on Seele's form. Lin Xi: You're looking for Seele, what does this have to do with me, Lin Xi? Until the object in the simulation, and even the real person in the quantum sea, came to force a marriage...Lin Xi: I'm so excited!

(Anime crossover, light novel)

Thanks for the invitation. I'm in One Piece, and I start out as Black Hairless.

Wandering the seas, free and unrestrained, but—

Why is this eagle-eyed rascal chasing me around all day? What? My son offended you? Then go find Xiao Mo! Why are you bothering me?!

Garp, why are you chasing me every day? Huh? Where's Great Britain? Can't you find it yourselves? Inviting me to join the navy? Me, the King of Great Britain, are you kidding me? No way!

Redheads? Giving you face? Not getting involved in the summit? Giving a cripple the run for his money! Asking for a beating!

Huh? I'm not that Black Hairless guy! What does your looking for Black Hairless guy have to do with my Gundam? You've got the wrong person!

Upon waking up, Yi Chen found himself in the world of Honkai Impact 3rd, but he wasn't panicked at all.

All you need to do is find a good spot to hide.

But the sudden appearance of a template system changed everything.

【Swimfushi Template】

Yichen: No, stagnant water is yin?

[Enkidu Template]

Yi Chen: Otto, after I die, who will understand you?

Who else can accompany you on this journey?

The thought of you living a lonely life from now on brings tears to my eyes...

[Indigo Dye Template]

Yichen: Mei, longing is the furthest distance from understanding.

(Multiple female leads)

On the eve of the Fifth Holy Grail War, unusual agitation was reported in the spiritual veins of Fuyuki City.

Rin Tousaka, a young woman who bears the honor of her family and the pride of a magus, chants the spell to summon the Heroic Spirits in her ancestral workshop. What she seeks is a sword sharp enough to sever her fate, a key to the "root."

However, the one who descended was the alien Herrscher who was supposed to dissipate in the cocoon of the end— "Nice to meet you, my dear little Master! Just call me Alicia♪"

The pink-haired, pointed-eared girl landed gracefully on the ground, holding a crystal longbow, with a sea of ​​stars in her eyes.

After traveling to the Marvel world, Qin Changjun became a deity capable of invigorating mechanical life. He also awakened the infinite critical hit reward system, where any sacrifice can receive a critical hit bonus boost. [Log]: Your follower Iron Man sacrificed the original Iron Armor, and you received the Bleeding Edge Armor! [Log]: Your follower Hulk sacrificed a drop of gamma-rayed blood, and you received the Sentinel Serum! [Log]: Your followers sacrificed the damaged Benson destroyer, and you received the sixth-order Feitian-class destroyer! [Log]: You activated the sixth-order Feitian-class Benson-class destroyer, and you received the seventh-order epic ship girl - Raffi. Superheroes: Believe in the Lord of Life, and you will have eternal life! Thanos:? ? What are ship girls, and why are they so powerful? "Because they are all my followers!"