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.
if it was Ito-san's fault that Sannan-san 
drank the Water of Life, then...
إذا كانت غلطة إيتو-سان قيام سانّان-سان
...بشرب ماء الحياة، فإذاً
wenn Ito-san Sannan-san quasi dazu genötigt hat,
das Wasser des Lebens zu trinken, …
si Sannan tomó el Agua de Vida
por culpa de Ito…
si Sannan tomó el Agua de Vida
por culpa de Ito…
Si c’est à cause de lui
que sire Sannan a bu l’eau,
Se la colpa del fatto che Sannan-san 
ha bevuto l'Acqua della Vita è di Itou-san,
Se o Sannan-san bebeu a Água
da Vida por culpa do Itou-san...
если Саннан выпил
живой воды по его вине...