This is a story about love that began miraculously when a man named Iba Jun obtained a magical pocket watch that can turn back time in exchange for selling his remaining lifespan to a grim reaper. Meanwhile, a girl named Ichinose Tsukimi, who wants to die, continues to attempt suicide.

Their unique story structure starts with what we usually consider as the 'end' - death - and gradually moves towards 'life,' offering readers a fresh and thought-provoking perspective on the meaning of love and life.

This is the physical copy of the One Day, You Came to My Death novel.