On the way to his graduation, a high school delinquent Sato Asahi was stabbed by an unknown man leading to his death. During his dying moments, he regretted all his past doings and wishes for a second chance. For some reason, he was reincarnated as a baby, making his wish true.  As time passed, he understood that his new world was completely different from the Earth he knew. With the presence of Mizuna (Magic) and growing up in an orphanage, will he be able to live his new life in this new world without any regret?