The protagonist, Kas.h.i.+wagi, who has learnt Karate from childhood has been made a target of bullying due to helping another boy in senior high school. Although Kas.h.i.+wagi would not yield to bullying, he began to especially dislike unreasonably cruel treatments and acts of betrayal. One night, as Kas.h.i.+wagi headed to his neighbourhood convenience store, he coincidentally b.u.mped into his childhood friend, Tendo Ayaka. After saving Tendo Ayaka from danger, Kas.h.i.+wagi reincarnated into another world. Kas.h.i.+wagi, now named Louis, was reincarnated as the child of an A-Ranked married couple will now live a new life with a powerful new skill 【Creation】.