Once upon a time, the second generation Momotaro went missing while exterminating a demon girl.Momotaro's younger sister, Momoko, who is the last heir to the Momotaro clan, is still lacking in power as the third generation Momotaro.She can't pay her annual tribute today, but instead she is beaten up by demons and vaginal cum shot.In the meantime, she is also raped by Momotaro II, who has been brainwashed by demons.Determined to get her brother back, Momoko trains her dick to squeeze the "energy", the source of her demon power, and heads for her decisive battle.