Tokyo, Love, Love

Kae Wada, 35 years old. Thinking about marrying her lover who has been dating her for 10 years, she feels reassured about her relationship with her boyfriend from college ... What appears under her are women trying to find her place for some reason, and acquaintances who have trouble with her. What is "Tokyo" for each of them trying hard to live? What is the form of happiness? And what is the end of Kae's romance ...?