Mikuri and Hiramasa both work and share housework duties. They have peaceful days together. One day, Mikuri learns that she is pregnant. They decide to marry, but they soon face problems. Mikuri suffers from pregnancy sickness and Hiramasa decides to take a paternity leave before an important project is finished. The couple experience unfamiliar situations involving childbirth and rearing. They go through difficult times.
The story takes place after the TV drama series Ossan's Love (2018). It's been a year since Haruta and Maki pledged their undying love. Haruta has now come back and receives a warm welcome from familiar faces, his boss Musashi Kurosawa and other colleagues. Justice Yamada, a recruit who has been recently assigned to this branch, welcomes him too. One day, completely out of the blue, the headquarter-based project team "Genius 7" shows up at the Second Sales Branch. Project leader Jin Mamiana orders the Sales team to support them in their big project. Maki, who had been transferred and works now at the head office, is among the project team members with Mamiana. Haruta and Maki grow apart, and Haruta teams up with Justice. Then Kurosawa gets involved in an accident and loses his memory, but the loss of his memory is selective and he has forgotten only Haruta. However, when Kurosawa sees Haruta, he falls in love again.. Hilarious and heartwarming, the final battle of Ossan's Love begins.
Three days before a cultural festival, reliable heroine Hikari Sasaki suddenly quits the club. Left behind in the theater club are four sensitive girls, Saya Honjo, Aoi Fujisaki, Kurumi Nakahara and Mika Shinoda. The girls have relied on Hikari for such a long time, and are at a loss, with none of them interested in being the next heroine. Nobody has any desire to be a candidate, but without a leader for the theater club the manager Saya has the idea of having a secret ballot.
But the result of the vote produces a shocking development.
Hiroshi Tanaka sports an intense perm which looks like the afro hairstyle favored by some African-Americans back in the 1970's. He doesn't get his hair done at a hair shop, he was actually born with his hair like that. For freedom, Hiroshi moves to Tokyo. He works hard there and, even though he turns 24, he still doesn't have a girlfriend. Meanwhile, a school friend informs Hiroshi that he is going to get married. Hiroshi remembers a promise that they made. Hiroshi is even more impatient to find a girlfriend. A beautiful woman named Aya Kato then moves into the neighborhood.
Arata Furuta plays a disgruntled saleryman fed up with being stepped on at home and at work, decides to get revenge on those who do bad things by killing them, only to gain a group of followers.
