Mahiro Takasugi

58-year-old Gentaro Ito lives with his wife Chizuru in a house in Tokyo. Each of their three daughters should have left home and lived well. However, their eldest daughter, 28-year-old Yuka, is single and doing well at work but has a propensity for affairs. Their 25-year-old second daughter, Rika, wedded a highly educated man and lives in Osaka but the couple are on the brink of divorce. Their youngest daughter, 22-year-old Mika, is also single, and the moment she gets to start living on her own, she half-cohabits with a man who does not seem like he will be a successful manga artist. Gentaro worries endlessly about his daughters who are poor judges of character. Completely ignoring their tastes, this stubborn, old-fashioned father suddenly brings a man whom he likes to the house in the middle of the night and introduces him to his daughters. In fact, this man is Yuka's ex-boyfriend. What will the family be like the next day!?

27-year-old Akiha Ōkado, who vows to stay single, gets a proposal to enter into a fake marriage from 30-year-old Shū Momose, who wants to get the status of a married man for some reason. Through living together as a fake couple, their relationship gradually changes.

Hayami Honoka works in the sales department for a major consumer electronics company. She is excellent at her job and is respected by her colleagues. She seems like a clean freak at work and her colleagues think she is a perfect person to marry. But, in her private life, her home is a complete mess. Things there are unorganized and dirty. On the flip side, when she arrives at work, she looks perfect. Meanwhile, Yamamoto Chihiro is Hayami Honoka's co-worker in the same department. He joined the company 3 years after Hayami Honoka. When he was a child, Yamamoto Chihiro and his two brothers did the housework at his home, while his mother was busy with her job. Because of this, Yamamoto Chihiro is excellent at doing household chores. Due to a case, he happens to learn that Hayami Honoka's home is a mess. He begins to stay with Hayami Honoka on the condition of doing the house work.

While working as a taxi driver on the hectic streets of Tokyo, a reticent walrus gets pulled into a mystery involving a missing teenage girl.

Hinata is murdered again by the Tokyo Manjikai Gang in front of Takemichi. In order to save Hinata, Takemichi travels 10 years back in time again. Takemichi has to change a key case that can save Hinata. The key case involves a sad incident that occurred to 6 men, who later formed the Tokyo Manjikai Gang.

After his classmate and crush is diagnosed with a pancreatic disease, an average high schooler sets out to make the most of her final days.