A BA x Kamen Rider fanfiction, an extended Kamen Rider story based on Kiwotos.

The story begins with the erosion rain half a year ago. An abnormal phenomenon called pollution begins to appear in Kivotos. The polluted place is called pollutant, and the pollutant will generate strange people called corrosive bodies.

The protagonist is Xia Lai's teacher, who transforms into Kamen Rider AIM by chance.

(This is my first time writing a fanfiction, please don’t blame me if it’s not good)

ooc and other issues can be pointed out

A person who had spent his whole life playing in a band arrived in a world that was like paradise—a world where everyone loved music.

What romantic elements will Ren Amamiya, a band mercenary who works for at least 50 bands, encounter with other bands during the game's release, and how should he act to avoid the occurrence of gravity fields?

What interesting sparks will fly when band members from different bands collide?

In an interview, a man described as "the bassist's lover," "the guy with two instruments," "the king of band mercenaries," "a vixen who is suspected of seducing multiple women," "the strategist who has created over a hundred songs," and "the manipulator behind the band" stated that his titles were largely exaggerated.

However, many people have doubts about this, since some of the titles do indeed match.

"No, at least I have to admit one thing: I am not a fox spirit, but a real person."

Ren Amamiya, who was pinned to the ground by the women and unable to get up, said these words before being dragged into the basement.

PS: (This work contains some out-of-character (OOC) content. Yes, I'm talking about you, Mother Hen, episode 7.)

Some notes: The timeline of this book will be different from the original, of course, it is only to the extent of whether the character is in the first or second year of high school. This book has thoughtfully added another week of plot before Crychic, please enjoy the pleasure of the group explosion. Bugs such as Mutoto being too talkative have been fixed. The following is a serious introduction: In fact, Iruma Hibiki was just an ordinary light novel author at the beginning, but in the relationship of breaking up and getting back together, he was eventually caught in the vortex of the girl in the band. If the god of time travel could favor him again and give him a chance to travel back to the past, he thought that the opportunity to change everything must be that afternoon, the first encounter with Nagasaki Motoyo. So, at the end of each distressed day, he whispered in the girl's ear: "Motoyo, let's break up."

[Fun Fiction + Worldview Clash + Harem] That year, thanks to two hundred episodes of "Approaching Science," Rosser became a famous exorcist in Shinjuku. Initially, he just wanted to easily earn 100 million yen, then go back to his hometown to get married and never come to Tokyo again to avoid being beaten to death by his victims. But when the evil spirits actually came, and he blew up the school building with his made-up spells, he realized, "So I'm a god?" Rosser grinned maniacally. "In this world of evil spirit crisis, your savior has arrived." First, he'd transform into the Abyss-Eyed White Dragon, giving the world a little dragon-related shock. Then, he'd shift the blame, create a high-spec Type-Moon game, connect it with FGO next door, and whoever loses becomes a Lostbelt. Add some subspace, Cthulhu, and fight fire with fire... Crossover characters: Stop! And so... Goetia: Your Beast Law is... wait, what the heck is the Law of Cycles? Gudako: Mashu, could it be that our world is the Lostbelt? Anime Crossover World: Please, please, switch back to the evil spirit! I don't want the Cthulhu dimension! Sakayanagi Arisu: He didn't treat me like a cripple, nor did he treat me like a human being. Kazuma & Ayanokoji: Commander Rosser is my faith, my loyalty! Yukinoshita: Brother-in-law, won't my sister be angry if you do this? Tokisaki Kurumi: You scumbag god, watch me exhaust you with my three thousand clones!

[Real-Time Coach + Hachiman + Dreaming of Future Wives] Hachiman Hikigaya dreams of different wives every night. At first, he thought it was just a teenage boy's dream, until he discovered they all came from Advanced Nurturing High School... Airi Hikigaya: Hachiman, you promised to take pictures with me. Suzune Hikigaya: A good morning kiss... I'll consider it. Kikyo Hikigaya: Tell me! Did you secretly go see that bitch Horikita behind my back?! Megumi Hikigaya: Hachiman, it's so good to have met you. Haruka Hikigaya: Hachiman, let's go to Airi's concert together. Honami Hikigaya: Hachiman, I want another child~ Hiyori Hikigaya: Hachiman, reading is enough for this life. Arisu Hikigaya: Oh well, I'll have to let Masumi do it for me. Masumi Hikigaya: Tsk! I'll crush you, you heartless bastard! Komachi XX: Brother, I'm getting married today! Hachiman: Only this one, absolutely not!!!

"That year, I saw the students of Class B slumped in their chairs, sobbing uncontrollably. That scene is unforgettable. At that moment, I thought, if I could become the class president of Class B, I would lead Class B to victory!" "So, Ichinose, let me be the class president of Class B." "No, Uesugi-kun, you're too radical." "Ichinose, you'll regret this!" "Uesugi, I am the class president of Class B." *Slap!*... "Hmph, naive Ichinose, do you think I can't do anything if you don't agree? Shibata, notify Kanzaki to prepare to close the net!" "Uh, um, Uesugi—" "Shut up, Shibata, this time we must act quickly. Before Ichinose can react, expel them from school. I want to see who can stop me this time." After a while, "The wind on the rooftop is so strong..." "Uesugi, come down quickly, I will never reveal your plans to Ichinose again." "You write it down!!"

When an era is romanticized, it signifies its complete passing. For Chen Junqian, a struggling children's literature writer who remains a mediocre figure despite years of effort, he'd rather be reborn into his familiar yet alien childhood than travel to a supposedly wonderful but unrealistic two-dimensional world. However, the condition is that he must create the best romantic comedy in this most realistic and mundane world, starting in 2009. Lacking a childhood friend with maxed-out affection, he'll artificially create the perfect one. Without a gentle and considerate older sister next door, he'll try to hold onto the online romance offline. Forced to become the male protagonist of a romantic comedy, his task is to recapture the lost opportunities of his past life. If there are no events, create them; if there are no stories, create them. This book is definitely not a guide to rebirth in the new millennium, but I guarantee it will be one of the best time machines ever made.

Every time I wake up, it seems I find myself in a new place, or even as a completely different person—a technologically advanced academy city…

The Mechanical Age of Human Extinction... Gensokyo, Favored by the Gods... The Everlasting Light of the Ultra Star... Another World of Demon Kings and Heroes...

In the world of "The Irregular at Magic High School," I was bound to a villain simulator.

[Mission 1: Publicly humiliate Shiba Tatsuya, instilling murderous intent in Shiba Miyuki towards you. Reward: S-rank magic - Gravity Collapse!]

[Mission Two: Eliminate Mayumi Nanakusa during the Nine Schools Battle. Reward: God-tier CAD - Eternal Heart!]

As a result, I became a scoundrel, a villain, and a demon in everyone's eyes!

But they didn't know that when Yokohama was engulfed in flames, I transformed into "Nameless," suppressing the entire scene with a single Gravity Collapse attack. When the Great Asia Alliance invaded, I transformed into "Phantom," protecting all of Japan with my Eternal Heart.

The female protagonists, while gritting their teeth and vowing to kill me, are also searching the world for their savior, hoping to repay him with their bodies.

Until that day, my vest accidentally fell off.

Looking at the petrified female protagonists, I shrugged: "Surprised? That's right, the Demon King you hate the most and the hero you love the most are both me."