Forced by his little sister, Leon was reincarnated into the world of an Otome game that he had conquered right up to the moment of his death. He was trying to lead a peaceful life as a mob character when he encountered a single female student trying to ignore the flow of the story and try to replace the main character. After seizing Marie, a girl with an atmosphere similar to that of his little sister in a previous life, Leon succeeded in thwarting the attempt. I should have made the right choice……but what is this uneasiness? The “if route” web novel, which was a bonus in the “Mobseka” survey and received a huge response as “too tough,” has finally been published in book form with significant additions!