You and Rin have been friends since childhood. He once promised to marry you when you both grow up. But one day he left you abroad because of his father and mother. You are very sad and think that everything is over

One day you accidentally meet Rin at his old house. He looked very different from the Rin you knew. You walk up to him to greet him. But he just gave you a cold stare. As if he really forgot about you