Sannan has been using materials left behind by Kodo to continue to try to improve the medicine in secret. He drinks the medicine and transforms into something which is no longer human. After seeing the wound Sannan infected on Chizuru heal in an instant, Hijikata asks her if she's a rasetsu, but...
Later, the commotion over Sannan adds to the decision to move the Shinsengumi headquarters to Nishi Hongwanji. Chizuru continues to search for her father, but she is unable to find any clues to his whereabouts. Then one day, Chizuru happens to overhear Okita's secret.
Then, until that day, I'll cough up blood 
and keep swinging my sword.
إذاً إلى حين ذلك اليوم، سأكحّ دماً
وأستمر في التّلويح بسيفي
Bis zu jenem Tag huste ich halt Blut
und schwinge mein Schwert.
Pues hasta ese día blandiré
mi espada tosiendo sangre.
Pues hasta ese día blandiré
mi espada tosiendo sangre.
Je manierai mon sabre jusqu’au bout,
quitte à cracher du sang.
Allora, fino a quel momento,
 brandirò la mia spada tossendo sangue.
E até esse dia chegar, eu continuarei
tossindo sangue e brandindo minha espada.
Значит, до тех пор я буду кашлять
кровью и махать мечом.