Sister Scheme HD by M de Pink - Adult Sex Game

Sakito Anzo is an ordinary high school student. He is in love with his classmate, the President of the Public Morality Committee, Isami Kusaku. But there is a third party - his own sister, Marina Andzo, who is madly in love with her brother. Once Marina, communicating with Sakito at school, felt lust and in order to hide it, she ran to the toilet, where she gave free rein to her hands. Later that day, Sakito finds in his shoebox a letter, not a love letter, but containing a photograph of Marina fondling herself in the toilet, as well as instructions that he must follow in order to avoid publicity and further embarrassment of his sister.
Instruction # 1: kiss Marina at the school gates. Is Sakito ready for this ...