Beware of Your Boyfriend Awas Pacarku Aneh

También conocida como: 남자친구를 조심해 · Boy From the Future (INE) · Awas Pacarku Aneh · Love Mission (Ine) · Mon Petit copain suspect · Watch Out For Your Boyfriend · ระวังแฟนหนุ่มไว้ให้ดี · 小心你的男朋友 · Boy From the Future · Namjachinguleul Josimhae

Dain and Sihyeon are in the same class, but they are awkward. One day, an unfamiliar man claims to be from the future, and said that he will be her boyfriend in the future. And that man is Lee Sihyeon, her classmate!? Dain doesn't believe the words of the unfamiliar man, but she gradually trusts him each time they met.