Predatory-type women are on the rise! Women who devour men — maneaters. For the first installment we cast the orthodox beautiful girl 心花ゆら. A certain couple decided to move in together. It turns out the girlfriend's sexual preference was a little unusual. She, who loves nothing more than seeing the man she likes suffer, is what you'd call a 'do-S' (extreme sadist). Her pure expressions of love toward her beloved, from a general point of view, are essentially training play for an M-man!