Mio, an incoming senior in college, gets persuaded by her friend and roommate to leave their house and go on a vacation to make new memories, relax, and maybe also forget about things from the past for the summer, though she takes it all too seriously and winds up going on a ridiculously spontaneous trip to Korea, not knowing what lies ahead her, and that the that the things she most wanted to forget are the things that she winds up remembering most.