I Reincarnated as a Mob Villain Prince Who Dies Before the Game Starts ~By Mastering the Weakest Magic [Dark Blade] with Excessive Effort to Be Happy with My Favorite Heroine’s Sister, I Became Overpowered~

JP Title: 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〜

Source text can be found at https://kakuyomu.jp/works/16818093085315408662

Status:

Ongoing

Description:

In the world of the RPG game ‘Crisnights,’ I, Luke, the fifth prince of the Celestia Empire, have a younger sister named Diana, the cutest girl in the world who loves me dearly. However, she is destined to fall into darkness and die. In this game world, Diana becomes the Demon King and is killed by the protagonist. I cannot allow my beloved sister to meet such a tragic fate. From infancy, I have worked tirelessly to defy destiny. Diana falls into darkness because our mother was assassinated, and our father, the Emperor, used her as a tool of war. I am determined to destroy this game scenario completely. This is the story of a mob prince striving to become the strongest to protect his sister from falling into darkness.

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