There is a cafe in Seoul where people leave their phone numbers on a board on the wall to make anonymous texting buddies. Y/N leaves her phone number, hoping to make an anonymous friend. JungKook (with the other members of BTS) go to this cafe and decides to text a random numbers. It is Y/N’s phone number. As time goes on, JungKook accidentally finds out who Y/N is because her phone number is connected to her social media’s. Y/N has no idea that her anonymous texting buddy is JungKook of BTS and he intends to keep it that way, enjoying the genuine conversations. Y/N has no idea that her anonymous texting buddy knows who she is, JungKook intends to keep it that way. Y/N is an army (fan of BTS).