It all began with a small 5 yr. old Jimin who started this whole love fest. Namjoon never really believed in love, not until he meant Jin. Jin is a single parent who owns a small coffee shop and has a 5 yr. old son named Jimin. He won't go on any dates since he claims he's to busy and he's afraid that his date won't want to associate with Jimin.

Jihoon is away for a business trip so his husband, Seungcheol has to take care of their 2 yr.old son, Daebak all by himself. Of course Seungcheol has some troubles since their son misses Jihoon too much.