Itsuka Tomodachi ja Nakunaru to Shite moいつか友達じゃなくなるとしても ; 就算有一天不再是朋友 ; Itsuka Tomodachi jaakunaru toshitemoItsuka Tomodachi ja Nakunaru to Shitemo

A story about two childhood friends who live next to each other. There's some tension in their relationship because of a past incident between them but how will this affect their friendship in the present day?