Touken Ranbu: Hanamaru - Makuai Kaisouroku

After the battle at Ikedaya, Yamatonokami Yasusada leaves the citadel to train and seek his own answer about strength. His absence weighs on Kashuu Kiyomitsu, who remains behind among the sword warriors guarding history from those who would alter it.

A letter and memories of their days together lead Kiyomitsu back through the seasons the warriors shared: arrivals, missions into different eras, celebrations, arguments, and the quiet routines that made the citadel a home. Looking back makes Yasusada's departure hurt, but it also reminds Kiyomitsu how much everyone has changed since their first days together.