A high school girl finally gets her own apartment, but she has to share it with the most popular boy in school. No one can know they're living together.
Episode 1
Nao moves into her own apartment, but a male classmate shows up and says he's the real tenant. They find a solution but it won't be easy to pull off.
Episode 2
Nao is still reeling from the morning's events but Uehara doesn't remember a thing. Marina suspects something is up and starts asking questions.
Episode 3
Nao tends to Hisashi, who is hospitalized from overworking. A mysterious woman appears. Rumors buzz at school that Hisashi and Nao are an item.
Episode 4
With Christmas Eve fast approaching, an unfortunate encounter with a delivery boy leads Nao to a new job, where she meets Abe, the "confession king."
Episode 5
A confession to Abe confuses Nao's relationship with Uehara further. Later, she hears that he'll be spending New Year's with his coworker, Nanako.
Episode 6
At Marina's suggestion, Nao and Uehara eat lunch bento together in public. It's fun, but she wonders if he's thinking of Yuri when they're together.
Episode 7
Yuri announces she's getting divorced and asks to stay at the apartment. Uehara goes home to his brother, leaving Yuri and Nao to live alone together.
Episode 8
Uehara's older brother, Takuya, tries to explain himself, but Yuri isn't having it and throws away her wedding ring. Nao works to help them reconcile.
Episode 9
Nao overhears Uehara talking about his feelings for her. Too flummoxed to respond, she avoids him. Marina suggests a Valentine's Day date.
Episode 10
Nao finds out Yuri stayed overnight and announces she'll be moving out. Daichi calls Uehara to a one-on-one meeting on the school rooftop.
Episode 11
The parents find out the truth and Uehara leaves to live at home. When her father cancels the contract, Nao runs away and Uehara goes to face him.
Episode 12
In an effort to rebuff Yukari's overtures, Icchan claims Nao is his girlfriend. Uehara overhears, but his lack of a reaction worries Nao.
Episode 13
Transfer student Nozomi Kitaura confronts Nao on the rooftop and shares her feelings about Uehara. Worried, Nao plans a special date with him.
Episode 14
Uehara’s presence alone puts Nao on cloud nine, but Issei throws her looks with mixed feelings. By chance, Nao is paired with Issei for a dare night.
Episode 15
After the trip, Nao is hospitalized for food poisoning and meets a kind college student. She learns that Uehara has been having a cute girl over.
Episode 16
Issei has moved into the apartment after a family fight. Marina has her eye on a visiting college student, whom Nao recognizes from the hospital.
Episode 17
Nao mistakenly assumes Uehara will propose to her, and engagement rumors spread throughout the school. After he denies it to her face, she collapses.
