Having replied to a wicked post on her school website, Ye Won keeps getting a threatening call from a boy named Ji Eun Seong. Having heard about him from her friend, she keeps running away from him. But they kissed accidentally when Ye Won was trying to escape from him. Having his lips stolen by Ye Won, Eun Seong threatens her to marry him, adding that no other girl has ever kissed him before. The only thing Ye Won can do is obey whatever Eun Seong says. At first, Ye Won just hates him the most for his self-righteousness and unreasonableness. But she gradually finds herself starting to fall for him.
Due to family circumstances, high school student Miko Sonoda is forced to live at her uncle's boarding house. However, before she can arrive there, Miko is already met with a bad omen: while trying to find the place, she suspects that someone is following her! When her uncle comes to her rescue, the assumed stalker happens to be one of his tenants, leaving Miko embarrassed on her first day.
Miko learns that she will be living with five unique adults, including the accused man. Additionally, it turns out that he is Jun Matsunaga, a 29-year-old designer who seems to lose his temper easily. Having made such a humiliating first impression, Miko believes that only a miserable life awaits her. But in the presence of Jun, she comes to realize that living with adults is not so difficult after all—and there may even be enough room for romance.
Miko learns that she will be living with five unique adults, including the accused man. Additionally, it turns out that he is Jun Matsunaga, a 29-year-old designer who seems to lose his temper easily. Having made such a humiliating first impression, Miko believes that only a miserable life awaits her. But in the presence of Jun, she comes to realize that living with adults is not so difficult after all—and there may even be enough room for romance.
Shirai Yui has decided to take a new job as a secretary at the law firm of her childhood friends, the Kami brothers. Yui has feelings for her older brother, Soichi, but when they meet again for the first time in 18 years, she is confused to find that Soichi has become a cool, unsmiling man. Meanwhile, her younger brother, Yushiro, has always loved Yui, but has not been able to express his feelings. And Soichi has been unable to express his love for Yui due to a childhood trauma. The love stories of Yui, who loves Soichi, Yushiro, who loves Yui, and Soichi, who is jealous of Yui's close friend, all intertwine.
Shima is a second year high school student. She has already become the youngest ever winner of a "new writer award" for poetry. Yet, she keeps it a secret that she is a writer at school. Shima has developed feelings for fellow second year high school student Kento. One day, Kento confesses his feelings for her and they begin to have a relationship. Shima has difficulties understanding other's emotions and can't understand Kento's feelings. Soon afterwards, Kento decides to break up with Shima...
