The only thing harder than being in a relationship with your bandmates has got to be being brought in on an already-existing relationship... Will Changkyun be able to find his place in this relationship, or are Hoseok and Kihyun just better without him?   Requested by anon as part of the MONSTA X Fic Request Forum, run by myself and Druekee~! Request: Kihyun/Wonho/Chankgyun + Changkyun feels insecure about his place in the pre-established relationship + Kihyun gets inj