Boku no Tonari ni Ankoku Hakaishin ga Imasu

Miguel, the God of Destruction, was once imprisoned inside Sturmhurt, the knight who ruled both light and evil. The knight was accompanied by Gestöber, who fought alongside him in numerous fights. They are fated to return as two classmates named Kabuto Hanadori and Seri Koyuki in the present. If not for the fact that these imagined heroes are nothing more than the result of Kabuto's fantasies, their reunion should be a happy occasion. Seri, the fictional "Gestöber," frequently finds himself in humiliating circumstances as a result of Kabuto's shenanigans, which occasionally go out of hand. Seri's social life is also being progressively destroyed by his classmate Utsugi Tsukimiya, who enters the fray with his insanely precise mind-reading skills. Seri makes a concerted effort to avoid them and refuse to participate in their antics, but given Kabuto's chuunibyou and Utsugi's unpredictable nature, he is only going to be overtaken by the antics coming his way.