Oni Chichi 2: Revenge Episode 1

Three of the Makino sisters—Natsume, Akira, and Fuyu—plan to attend a school training camp at the beach. Since they must find someone to come with them in their sick adviser's stead, the sisters choose to go along with their father, Kenichi. However, given his illicit desires, Kenichi plans to do more than simple training with them.