Yuu, a serious and hardworking college student, is good at everything she does — but boys often say she’s “not very cute” or “not charming.” She wonders: Do I have to change myself to become someone’s number one…? As she struggles with this question, she meets Yang-senpai, a Chinese exchange student. He’s handsome and seems kind at first glance, but one day, Yuu discovers his secret…!?A pure love story begins — between a dependable college girl and a puppy-like Chinese guy, starting from a “business” relationship! ♥