A clumsy high-school girl - Oh Ha-ni - is at the bottom of her class, and she has had a crush on a popular genius, Baek Seung-Jo, ever since she first laid eyes on him.

At a high school entrance ceremony, high school student Kotoko Aihara, who isn't that smart, notices pretty boy Naoki Irie. She falls in love with him immediately. Kotoko initially doesn't express her feelings to him, but finally has a chance to tell him how she feels. Unfortunately, Naoki turns Kotoko down, saying "I don't like dumb women." One day, Kotoko Aihara's house is severely damaged by an earthquake. Until the house is rebuilt, Kotoko Aihara and her father decide to live with her father's friend. When Kotoko Aihara moves to her new temporary house, she is surprised to learn that Naoki Irie lives there as well.

When her newly-built home is razed to the ground by an earthquake, low-achieving, clumsy, and troublesome third-year high school student Kotoko Aihara is forced to share a roof with the school's—and possibly Japan's—smartest student, Naoki Irie. Kotoko is not actually a complete stranger to Irie-kun; unfortunately, a single love letter that she tried to give him in the past has already sealed her fate as far as he is concerned. Throw in some quirky friends and a meddlesome mother, and Kotoko might not even have a snowball's chance in hell of winning the older Irie boy's heart. Yet Kotoko remains optimistic that, because she now lives in his house, her unattainable crush on the genius since the beginning of high school has never been more within reach.

A live-action television adaptation of the Japanese manga series Itazura na Kiss written by Kaoru Tada.

After an earthquake destroyed Xiang Qin's house, she and her father moved in with the family of her father's college buddy, Uncle Ah Li. To her surprise, the kind and amicable aunt and uncle are the parents of her cold and distant schoolmate Jiang Zhi Shu, a genius with an IQ of 200 whom not too long ago rejected her endless crush on him. Will the close proximity give her a second chance to win Zhi Shu's heart? Or, will her love for him end under his cold words? What happens when there is competition for his heart?

Late for a meeting, Kotoko was running along the corridor in school and bumped into Naoki, their lips meeting. Naoki showed his disgust, but Kotoko started to idolise him, who was good at everything from studies to sports. When Kotoko's house burned down, her father's good friend Machiko invited them to move in with her family. It was then that Kotoko realised Naoki was the elder son of Machiko, who took up the role of a fairy-godmother to bring the two together...despite the fact that Naoki was disgusted. Not discouraged, the clumsy and not-so-bright Kotoko started to do everything that would change her impression on him. Gradually, the icy-cold Naoki who disliked girls started to feel for Kotoko...