Kiss x Sis Episode 11: In That Field of View, Many Colors
Episode 11 of 12 of Kiss x Sis, aired August 6, 2014, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Keita inadvertently steps into the girl's bath at the public bathhouse and is forced to hide when Ako, Riko, and the others show up.