My wife, Firefly, started a part-time job because her husband's place of employment went bankrupt. The manager of her part, Tsujimura, is kind and the fireflies get used to it soon. Tsujimura, who escaped to her wife because of a huge cock, found out that she was frustrated and urged her. Every time her agonizing body is pierced by her big cock, she forgets her unexperienced pleasure and catches it in the back of her vagina. The stimulus of the uterus that makes you forget everything is to plant his big cock in the depths of the firefly.