Touken Ranbu - Hanamaru

Touken Ranbu: Hanamaru is set in 2205, where a Saniwa has the ability to animate objects. This ability is countered by dark forces trying to alter history, and the Saniwa's strongest allies, historical Japanese swords, must stop them. The story follows Yamatonokami Yasusada, an uchigatana and Souji Okita's sword, as he begins his life at the Saniwa's citadel. Alongside his friend Kashuu Kiyomitsu, Yasusada engages in various activities with the other sword warriors, including snowball fights and welcoming new comrades to the citadel.