Gintama: 3-Z Ginpachi Sensei Episode 12 was the finale of this spin-off series, and till the end, the anime stayed true to its roots and delivered one of the most chaotic last episodes. To even break it down and understand everything that happens that took place in this finale, fans would have to watch it more than once just to catch all the easter eggs that were a part of this episode.
The conclusion to this spin-off not only ended the season but also somehow managed to loop it, demolish the format, and rebuild it into something new altogether. The reason given by everyone for pulling a stunt like this was that it was supposed to be a PR stunt. Gintama: 3-Z Ginpachi Sensei Episode 12 started by showing us a hilarious, obvious rebranded Amazon, and then the episode immediately signals that this finale is going to be peak meta chaos.
A nostalgic opening that sets the tone

At the start of Gintama: 3-Z Ginpachi Sensei Episode 12, we see Shinpachi as an adult who has been working a job for eight years and still struggles to properly serve foreign customers. Fans have noted that this is an obvious callback to the old Yorozuya gag from Gintama Episode 138. It’s classic Shinpachi: earnest, hardworking, and perpetually stuck at square one.
The visual upgrade in this episode is to subtly communicate the passage of time, even as the jokes insist that nothing has fundamentally changed. It’s a quiet but effective contrast that immediately grounds the episode in nostalgia. While Shinpachi got an earful from his boss, we saw him thinking about the past, and his eye caught the attention of someone who looked like Ginpachi for a second, but it was someone else altogether.
When he came back home that day, his sister was going through some old things, where we were shown Shinpachi going through some pictures from the time he was part of class 3-Z. That is when the idea of calling everyone for a reunion comes up.
The reunion: Where everyone ends up as adults

And in Gintama: 3-Z Ginpachi Sensei Episode 12 holds a reunion that no one will forget. Kondo now runs a demolition and construction business, which, of course, originated from breaking into Otae’s house and dismantling her security systems. Even better, Otae herself started her own construction and teardown company, with Kondo as her very first “client.”
The recurring “scrap and build” gag becomes the thematic backbone of the episode, paying off beautifully when it loops back again at the very end. Hijikata’s career path might be the most absurdly fitting of all. He’s become a worldwide traveler dealing in scraps, specifically, mayonnaise bottles. It’s such an exaggerated extension of his obsession that it somehow feels inevitable.
Sougo, meanwhile, has reinvented himself as a rakugo performer after blackmailing his master, Hashida Kahei, from Gintama Episode 51. His rakugo anecdote, featuring Hijikata, Kondo, and Madao literally as a fence, is one of the episode’s standout jokes.
Pure fanservice chaos and meta references

The best highlight of Gintama: 3-Z Ginpachi Sensei Episode 12 is how it kept on making references to other popular Jump titles. The episode spirals into pure fan service nostalgia. Kyuubei reminisces about the sports festival, complete with a Naruto Chunin Exams reference straight out of Naruto Episode 24. Zura, Tojo, Madao, and Kagura all show up, with Kagura jokingly revealed to have been “inside” the group the whole time.
What makes this finale genuinely sweet is its emotional core. Everyone shows up not just for jokes, but to give Shinpachi confidence. That sincerity fuels the episode’s biggest gag: Shinpachi says to “take it from the top,” and the anime literally restarts itself. Meaning, in the middle of the episode, we get the opening track once again.
Gintama: 3-Z Ginpachi Sensei Episode 12 delivered a finale that refuses to end

The Ginpachi anime begins again, with new variations, new jokes. Kagura changes first, then Zurako Mama appears, then Sougo pushes for a sports festival redo while the girls prepare for exams. Even Takasugi’s group in Gintama: 3-Z Ginpachi Sensei Episode 12 reverting into grade schoolers hits harder than expected, especially when his theme plays. It’s nostalgia weaponized in the most Gintama way possible.
In the end, this was all done as part of PR because we were teased towards a possibility for Season 2. Although it remains unclear whether the anime will be renewed or this is the absolute finale, the ending has made fans feel less sad about saying goodbye to this hilarious and chaotic Gintama spin-off.