There are Some Things You Should Not Forget When Drinking away the Past Year at Year-end Parties

It's a year-end party at Odd Jobs! The Gintama anime has been through a lot, but Gintoki tells Kagura and Shinpachi to keep it cool. And then the usual members join in for some real partying... The next morning, Gintoki wakes up to discover that he's made some very bad mistakes.