The brothers try their hand as streamers after being chastised by their parents for not having jobs. Later, Iyami uses an experimental detergent to keep his suit clean, but after being confused by the Matsunos as an expensive liquor, is revealed to turn anything invisible (up to a point).

The prehistoric sextuplets return, partaking in dangerous sports. Later, in modern day, noticing their father acting strangely, the brothers discover that he is worried that there's not enough spark in his marriage. Feeling he should return to a more innocent time, the boys give their old man a masterclass in being a virgin, albeit with no success. After embarrassing himself in front of his sons, Matsuzou considers a love potion from Dekapan, but is this really the best way to patch things up with the love of his life?

Jyushimatsu befriends a young boy named Eitarou but gets called in by Eitarou's mother when he starts imitating him. Later, Dayon steals Dekapan's underwear, forcing him to give chase all over the city and universe while butt naked.

The brothers get rowdy while getting drunk at a restaurant. Unemployed office lady Totomi ends up taking a job at a strange establishment that offers some peculiar services. After being visited by a salesman, Matsuyo contemplates sending off one of her sons to a NEET correctional facility, asking Choromatsu to help her decide which one to send away.

The Matsunos and Iyami are killed in a freak plane crash, sending them to Hell. In mourning, the others ponder a way to bring the status quo to its rightful place with the help of someone near and dear to them.