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.
I think searching in a panic like 
that is pretty pointless.
أعتقد أنّ البحث في هلع بهذا
الشّكل لا جدوى منه بتاتاً
Eine panische Suche bringt gar nichts.
Creo que buscar a ciegas
es perder el tiempo.
Creo que buscar a ciegas
es perder el tiempo.
Tu cherches dans tous les sens,
ça ne sert à rien.
Non credo ti sarà utile 
cercare così a caso.
Sair procurando assim, de qualquer
jeito, não vai resultar em nada.
По-моему, хаотичные поиски
ни к чему не приведут.