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
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
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～
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
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～
-Description
Luke has reincarnated as a mob prince from a game he played in his past life. In this world, there is Diana, the cutest little sister in the world. As it turns out, Diana is fated to die after falling into darkness. His beloved little sister will die at the end of a dark path? Luke is determined to smash that scenario to pieces. He has been striving ever since he was a baby to defy that fate. This is the story of a mob prince aiming to become the strongest to protect his beloved little sister.
Source: MagaPoke, translated
Official Link:
MagaPoke