The Villain Prince Masters the Weakest Magic to Protect His Favorite Heroine’s Sister

Synopsis

Luke is reincarnated as a minor prince in a game he played in his previous life. In this world, he has a little sister named Diana, whom he considers the cutest girl in the entire world. But there’s a terrible secret about Diana: she is destined to fall into darkness and die! His beloved little sister is going to succumb to darkness and meet her end? “I’ll smash that scenario to pieces!” Luke decides to defy fate and begins training and working hard from the time he is just a baby. This is the story of a minor prince who strives to become the strongest in order to protect his beloved little sister.