Kaito is a university student who fell in love with Rin. However, a tragic accident leads to Rin's death. After attending the funeral, Kaito travels to Tokyo to meet Rin's friend, Misaki, to inform her of the news. After that, something strange happens to him- he begins to discover that he has the ability to travel back in time and return to the present. This marks the beginning of Kaito's attempt to prevent the accident that caused Din' do