Even though Mina has been remarried to her husband for several months, she can't get along with her stepson. She wishes they could be close like real parents and children, but it always ends in vain. Then, her husband goes on a company trip, and she starts living alone with her stepson. In order to dispel the awkward atmosphere, she tries to communicate actively... But her stepson's reason is on the verge of collapse with Mina's lewd body, which is more intimate than usual...