Hakuouki: Hekketsuroku

Synopsis

Okita's tuberculosis is getting worse, and Hijikata refuses to let him accompany the rest, telling him to get better first. The troops leave Kondou in Hino, and proceed on. Nagakura shows disagreement with Kondou's actions, and Saito asks Hijikata if he think that they can win the battle. Hijikata replies that in their current state, they cannot match the enemy. Later, Chizuru has a nightmare and follows Saito outside the camp, where he tells her about his past and his opinions. They meet up a messenger, who tells them that the enemy has already entered Koufu Castle. Kondou refuses to let the army retreat, and Hijikata leaves to find more troops. Before he leaves, he makes a "Chiming Metal" oath with Chizuru, making her promise to stay alive and protect Kondou. Meanwhile, Kaoru talks to a mysterious man. The war starts just a few hours after Hijikata leaves, and Kondou agrees to forfeit after seeing the many men he let die in vain. Nagakura and Harada run into the Oni from before, and battle a strange group of Rasetsu. It is revealed that the creator of the Rasetsu is Chizuru's father, Koudou.

(Source: Wikipedia)