Synopsis
A Keio University (one of the top three colleges in Japan) exam candidate, Touma Inaba, is interrupted when a cute young girl, Urara Kasuga, arrives at his hotel room door. She later turns out to be his cousin whom he barely remembers from childhood. Urara, who harbored special feelings for him beyond a cousinly love, invites Touma to live with her since he has nowhere else to stay but the hotel. Before taking the entrance exam, Touma meets Meiko Yotsuba, a beautiful, sophisticated woman also aiming for Keio. Meiko passes the exam, but Touma does not, due to a cold he caught from Urara shortly beforehand. Although he failed, he pretends he succeeded to earn Meiko's respect. Touma becomes caught in a love triangle with Urara and Meiko, struggling to maintain Meiko's belief that he is a real Keio student while still being there for Urara at the same time.