Gakuen de Jikan yo Tomare
Japanese title: 学園で時間よ止まれ
Type: OVA
Source: Visual novel
Episodes: 4
Status: Finished Airing
Aired: May 29, 2015 to Oct 30, 2015
Duration: 29 min per ep
Rating: Rx - Hentai
Studios: Suzuki Mirano
Genres: Hentai

The bastard son of a rich aristocrat is hellbent on seeking revenge ever since his father abandoned him and his mother died from overworking. He decides to teach his father a lesson by destroying what he treasures the most, his two daughters. He infiltrates their prestigious school with a magical time-freezing device he received from a witch—and proceeds to repeatedly rape his half-sisters, leaving them confused, helpless and begging for mercy.

(Source: The Visual Novel Database)