Yihwa, a single university girl, believes that she doesn’t need boys in her life and that she can survive without them. She thinks that boys are like iPhones, only there for decoration. However, when Yihwa goes to the condo of her best friend Korn and his partner Knock, she meets Cho. Cho falls in love with Yihwa at first sight, but Yihwa does not feel the same way. Instead, Yihwa thinks that
