Game Kaishi Mae ni Shinu Mobu Akuyaku Ouji ni Tensei shita Ore: Oshi Heroine no Imouto to Shiawase ni Naru tame ni Saijaku Mahou "Yamiba" o Kajou na Doryoku de Kiwamenuitara, Saikyou no Bukkoware Seinou to natteita Ken

also known as Game Kaishi Mae ni Shinu Mob Akuyaku Ouji ni Tensei Shita Ore ~Oshi Heroine no Imouto to Shiawase ni Naru Tame ni Saijaku Mahou [Dark Edge] wo Kajou na Doryoku de Kiwamenuitara Saikyou no Bukkoware Seinou to Kashiteita Ken~ / Reborn as the Mob Villain Prince Destined to Die Before the Game Begins: I Turned My Weakest Magic [Dark Edge] Into the Most Broken Skill Through Sheer Effort / ゲーム開始前に死ぬモブ悪役皇子に転生した俺　～推しヒロインの妹と幸せになるために最弱魔法【闇刃】を過剰な努力で極め抜いたら、最強のぶっ壊れ性能と化していた件～

2026