Maruyama

In a local elementary school where there is a huge gap between the rich and the poor, Shiraishi Yukino, a mother of twins, goes from celebrity to stardom after the death of her husband, who worked for the Board of Education. In order to clear her husband's name, Yukino tries to use her body to get closer to the PTA, which holds the key to the case, but gradually becomes addicted to pleasure... What is the truth behind her husband's death? And what fate awaits Yukino...?

Isshiki joins the high school mahjong club after falling in love with a senior at the same school, professional mahjong player Shiratori.