Zoku Touken Ranbu: Hanamaru

It's New Year's Eve and the Touken Danshi plan to celebrate like normal people. Meanwhile, the swords Higekiri and Hizamaru appear and the eldest Touken Danshi, Kashuu Kiyomitsu, is sent to guide them. He's joined by Shishiou, Hotarumaru, and Akashi Kuniyuki. (Source: Anime News Network)