Because a cliff accident caused the two to be in different worlds, can the protagonist remember what happened before? What would you do if you remembered him?
Will the man who forced the protagonist to fall off a cliff regret it? When the person who claims to only love you for the rest of his life disappears, will you feel relieved, or...
(Okay ヽ(￣д￣;)ノ, because I was in a bad mood, I wanted to write a sadistic article, that's how willful it is!)