I went back to the past and did it over again.

This is sudden, but I was given a chance to go back to the past and start my life over. It might just be a dream. Even so, if I can do it again, I want to help you—the one who gave me purpose and a reason to live. This is a story about desperately struggling to redo the things I want to redo, now that I can go back to the past, and ultimately grasping happiness. ※I have also posted a story from the heroine's perspective titled "The Best and Happiest Life Given by God."