元マフィアの下働きというアングラな経歴を持つ少年・言万心葉は青春を諦めていた。しかし、ある少女たちとの出会いがきっかけで、心葉の人生は一変する。人類を滅ぼす正体不明の存在をデカい銃でやっつける! そんな彼女たちの学園生活。世界の裏側には、とんでもなくハチャメチャな青春が存在した! SF、恋愛、戦闘などなど、楽しさ全部盛りの巨弾連載、開幕! Kotoyorozu Kotoha, a boy with an underground past as a former mafia underling, had given up on youth. However, his life changes completely after meeting certain girls. With massive guns, they fight against mysterious beings threatening to destroy humanity! This is their school life — full of chaos, action, and unexpected twists. […]

元マフィアの下働きというアングラな経歴を持つ少年・言万心葉は青春を諦めていた。しかし、ある少女たちとの出会いがきっかけで、心葉の人生は一変する。人類を滅ぼす正体不明の存在をデカい銃でやっつける! そんな彼女たちの学園生活。世界の裏側には、とんでもなくハチャメチャな青春が存在した! SF、恋愛、戦闘などなど、楽しさ全部盛りの巨弾連載、開幕!

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Kotoyorozu Kotoha, a boy with an underground past as a former mafia underling, had given up on youth. However, his life changes completely after meeting certain girls. With massive guns, they fight against mysterious beings threatening to destroy humanity! This is their school life — full of chaos, action, and unexpected twists. Behind the facade of the world lies a wild and outrageous youth like no other! A mega-serialized story packed with sci-fi, romance, action, and more — let the fun begin!