A girl from his past. A woman who's the sole reason why there's a whole in his memory. Will he remember? Will he be able to recall the promise he made a decade from his present time? Or he will just let all his memories go and let time bury it forever to oblivion? She came back, she's back for the promise they made since childhood. Will she be able to bring back his lost memories? Or she will just give up and let him go?