Masakazu is worried about his sister, who works at a girls' bar, and asks Aso to scout out the bar. Meanwhile, Masakazu begins to suspect that Yamaji and Miyashita, who go to the same gym, are getting close.
Masakazu finds out that Maribu is dating Yutori while hiding the fact that he's married. Not wanting to hurt Yutori, Masakazu asks Maribu for a favor. In the meantime, Yamagishi has some doubts about the deal with his business partner and asks Masakazu for advice.
A company Masakazu used to do business with causes a mass food poisoning. The current manager, Yamagishi, disappears, and Masakazu has to attend a press conference in his place and give an apology. Meanwhile, Akane's father arrives in Tokyo and doesn't know that Masakazu has broken up with her.
Masakazu's mother is furious at her sons for being so selfish. In the meantime, Maribu changes his job to support his family, but he gets into a dispute with a man who he works with on the job site.
