Busan local Tae Jung who is studying English in Seoul, and his roommate In Gyu meet a girl named Ji Hye. Next day, while waiting for Ji Hye's phone call, Tae Jung suspects that In Gyu's night out might have some connection to Ji Hye.

Yoo Tae-jung
as Tae-jung

Baek Sung-hyun
as In-kyu

Jeong Yu-mi
as Ji-hye