In the romantic comedy story, a high school girl named Kotoko finally tells a fellow senior named Naoki that she has loved him from afar since she saw him on their first day of high school. However, Naoki, a haughty "super-ikemen" (handsome male) with smarts and sports talent, rejects her offhand. Fate intervenes when a mild earthquake ruins Kotoko's family house. While the house gets rebuilt, Kotoko and her dad stay at the home of her dad's childhood friend...whose son is Naoki.
S01:E01 - Fate's Prank
Things just are going well for Kotoko but her luck has to change for the better, or does it?
S01:E02 - Living Together Is Dangerous
Kotoko blackmails Irie into helping with her exams.
S01:E03 - Baton Touch of Love
Homework brings Kotoko and Irie unexpectedly together.
S01:E04 - Throbbing Summer Vacation
Kotoko knits a good luck charm for Irie but it seems to have the opposite effect.
S01:E05 - The Crucial Moment!Class F's Winter Battle
Kotoko is determined to make a special memory with Irie before high school is over.
S01:E06 - Chocolates, Exams, and the Jinx
Kotoko and Irie go to college and Kotoko is jealous when another girl looks at Irie.
S01:E07 - Spiteful Kiss
Kotoko and Irie are challenged to a tennis match.
S01:E08 - The Campus Life I've Longed For!?
Irie and Matsumoto's movie date is ruined.
S01:E09 - Aim for a Date
Kotoko wants to spend more time with Irie.
S01:E10 - Goodbye Rainy Day
Kotoko rushes Yuki to the hospital.
S01:E11 - Kiss, Kiss, Kiss in a Dream
Kotoko has no plans on Christmas Eve.
S01:E12 - Mismatched Hearts
Kotoko can't decide what her dreams should be.
S01:E13 - Love Period
Naoki must run the company while Mr. Irie is in the hospital.
S01:E14 - Greatest Kiss
Naoki agrees to an arranged marriage.
S01:E15 - Honeymoon Panic!
Kotoko and Kin-chan date.
S01:E16 - Chasing After Happiness
Kin-chan proposes to Kotoko.
S01:E17 - Enviable New Face
It's Kotoko's first day of learning how to be a nurse and she meets and becomes friends with 4 new people: Kikyou Motoki (who pretends to be a girl but actually is a boy), Shinagawa Marina, Kamogari Keita (a guy), and the lovable Ogura Tomoko.
S01:E18 - III Mannered Triangle
Kotoko is still learning the tricks and trades of becoming a nurse. But she faints during a practice autopsy which results in Keita saving her. When he lays Kotoko down on the bed, he suddenly felt the urge to kiss her.
S01:E19 - Crazy for You
Irie starts to ignore Kotoko due to being overly jealous of Keita. During lunch one day, Chris gets burned by oil, and Kinnosuke, refusing to hand her over to anyone else, admits his feelings and devotion and proposes to Chris.
S01:E20 - The Nightingale Pledge
When Kotoko announces to Irie that during the capping ceremony/graduation, the male students in the medical department are to present flowers to the nurses they like, he tells Kotoko that he won't be able to make it to the ceremony because of a meeting.
S01:E21 - The Glass Boy
Nobuhiro turns out to be Yuuki's friend Non from back when Yuuki was admitted into hospital. However, he has changed very much due to his loneliness from growing up in the hospital. Kotoko manages to talk to Non and makes him realize how many people care.
S01:E22 - The Best Gift
It is Kotoko's birthday and Irie takes her out for the night. Irie and Kotoko are very 'lovey dovey' in this episode. Irie and Kotoko pull an all-nighter at the hospital as a lot of emergencies came in.
S01:E23 - You, Go Around, Me
After visiting the hospital, it is confirmed that Kotoko is indeed pregnant by three months. Oba-san throws a party, Kotoko and Irie's fathers both look up baby names, even Yuuki is excited though he tries not to show it.
S01:E24 - Happy Love Carnival
Kotoko is messing around with her C-cup breasts. She later on goes to see Kin and finds out that Chris is 3 months pregnant. Kotoko, after coming back home, tells Irie about the news.
S01:E25 - Hello Again
Kotoko, Naoki and their daughter Kotomi go to Naoki's grandparents home. On the train, Naoki has a flashback to when he and Kotoko visited there after their marriage. Kotoko arrives there feeling excited about spending time with Irie alone.