Sitri has been thinking on what to do with the idea of "badasses also spend time on Christmas." The conclusion he came up with is to give Christmas presents to the senpais he admires. Gathering the war funds for presents should also be done in a badass way, so Sitri has combined it with a training journey by heading down to the underground fight ring. He thought he was toughened by the hard fights, but it seems his training results surpassed his expectations.