Soukan Yuugi 2 / Sexual Pursuit 2

The main character of hentai is Makoto-kun. He grew up without a mother, as she passed away when he was still a child. The father lives separately because of work, and our hero has to live with his older sister. Soon, Makoto has another woman in his life – a new stepmother and a younger half-sister from his father's marriage. Now he feels incredible happiness surrounded by women, and only a strange game that he bought from a mysterious seller haunts him.