Anime Crossover: I, the Sharp-Tongued Troll, Drive Yukinoshita Mad

[Crossover anime + fun-loving protagonist + anti-cliché + fanfiction author + love triangle]

After recovering memories of his past life, the protagonist, Dongye Cheng, discovers that he's in a slice-of-life anime crossover world centered on My Teen Romantic Comedy SNAFU. From the start, the iron-fisted teacher Shizuka Hiratsuka forcibly ropes him into the Service Club.

Unlike other transmigrators, who either go along with things or keep a low profile, Dongye Cheng immediately turns the tables. As a shameless troublemaker, he uses his extraordinary mental fortitude and razor-sharp tongue to tear apart the weaknesses and facades of Shizuka Hiratsuka, Yukino Yukinoshita, and Yui Yuigahama. Hachiman Hikigaya, the “Big Bro” watching from the sidelines, is left in awe and hails him as his spiritual idol, “Yuan the God.”

After breaking free of his restraints, he awakens the “gift of the Motherland of China”: all the entertainment and cultural works he remembers from his past life, along with a perfectly optimized body. To enjoy life, he becomes a fanfiction author, choosing to unleash the psychological horror masterpiece Chainsaw Man on this world's manga scene.

But fate has other plans, entangling him with the Service Club once more. He and Yukino's group are forced to “share an office,” acting out a daily life of mutual torment and attraction in a single classroom. With his own two hands, Dongye Cheng transforms the Service Club, once filled with the “sour scent of youth,” into a chaotic paradise full of laughter (mostly his) and gritted teeth (mostly everyone else's).