You and your best friend have been together since you were little, your friendship has been quite different from normal ones. One day changed everything and another day changes everything.
You and Taehyung were childhood bestfriends, but he moved away to another city. It's been about 9 years since you last seen him. Surprisingly you guys met again at XXXX University. You were excited to make new memories with him, but he acted as if he didn't know you. You didn't remember what had happened between you guys before he left.