Title: Gakuen de Jikan yo Tomare
Japanese Title: 学園で時間よ止まれ
Released Date: May 29, 2015 till October 30, 2015
Brand: Suzuki Mirano
Based on the adult game by Waffle.
The bastard son of a rich aristocrat is hellbent on seeking revenge ever since his father abandoned him and his mother. 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.