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)

Lan Tangying, who travels through the world of anime, obtains the Heart of the World and, starting from that world, creates his own. Step by step, he expands the world and replenishes himself until he becomes the master of the infinite multiverse. Experience the daily life of anime in the main world, and travel through the worlds of Demon Slayer, Inuyasha, Genshin Impact, and more.

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)

[Minor Illness][Multiple Female Leads][Strong Female Lead][Dual Civilizations] "My friend, your abilities will be a great lure, so I need you to achieve my goals. Similarly, this will help us develop our own weapon," Otto said. Zhong Li Mo silently agreed to Otto's proposal, thus sowing the seeds of her own downfall. "Sister... what are you going to do to my husband?!" "I won't let you disappear again... you will be by my side forever." "You mean our husband, whom we've waited fifty thousand years for, has been stolen by a bunch of paramecia?"