Rurouni Kenshin

Rurouni Kenshin is a manga and anime series by Nobuhiro Watsuki.

Episode 1
Kamiya Kaoru is shown bathing. While Kenshin Himura is outside keeping her bath heated, Kenshin hears the Kaoru might be crying and runs in to stop her only to get her mad from Peeping on her.

Episode 66
Kamiya Kaoru takes a Bath.

Episode 78
Kamiya Kaoru and Makimachi Misao bathe in an Onsen and get Peeped at.