Takkun wa Mama to Watashi de Mousouchuu!?

The protagonist, who is prone to fantasies, is filled with the pheromones of his childhood friend and mother. He indulges in erotic fantasies in front of her. The heroine who is his childhood friend, goes up to him and makes his fantasies come true to turn his attention away from her mother. The protagonist, the heroine and her mother end up in a special relationship, and an erotic battle of fantasies unfolds! What kind of reality awaits at the end of it all...?