The male protagonist is reincarnated as the brother of his sweetheart due to an accident. The male protagonist is a kind and cheerful person. He likes her childhood sweetheart very much. By chance, he overhears that someone is trying to frame his childhood sweetheart. He saves her and loses her life. He reincarnates and gives the person he loves to "himself" in this world step by step. After that, he returns to the original world and forgets everything.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.
