action based on a manga bionic powers comedy coming of age conspiracy drama earth ecchi harem isekai japan magic male protagonist manga mecha middle school military parallel universe parallel world piloted robot psi-powers real robot romance school sci fi sci-fi science fiction science-fiction seinen shounen slapstick super robot super robots violence
Rating: 6.89
Kurogane no Line Barrel, Kurogane no Rainbareru, Linebarrels of Iron, knl, linebarrels, Стальной Лайнбарель, くろがねのらいんばれる, 武装机甲, 鉄のラインバレル, 강철의 라인배럴
Fourteen-year-old Kouichi Hayase'