"Rin...I'm sorry. If there's another lifetime, I'll never let you go." Years passed by in his life, yet he could never forget. The girl who was his childhood friend. The one he loved. The one who sacrificed her life for him. Maybe. Maybe if he had tried harder.... then she would still be alive. Some people tried to convince him to forget her. They say that it is God's will. So he hated God for taking her. Now that he's dying, he swore on his soul that if there's another lifetime, he'll never lose her again. No matter who or what stands in his way. If one person comes, he'll kill one person. If two people come, he'll kill two. If God comes, he'll kill God. Never again will he lose her. And maybe God pitied him. Maybe wishes do come true. Therefore he was reincarnated again. And he wasn't the only one reincarnated. The girl did as well.