Nishimura Ni-ki is your bestfriend since kindergarten, you and hime became bestfriends because he helped you with your shoes

Now you guys are highschool. Both of you are INSEPERABLE, there is no time you guys aren't together, it's like you guys are both siblings now.

One day, you and him were walking back home. Laughing, talking..when suddenly a car hit you, he took you to the hospital and left after a few days. Years had passed, Ni-ki found you again, he tried making you remember him