A beloved and gentle nanny named Mari-san, who is loved by both children and parents, and is said to have a boyfriend in a relationship with marriage in mind. But when the holidays come... actions that are unthinkable from her usual self! Her perverted urges start to throb, and she can't help but want to expose herself and engage in public sex. Not content with merely experiencing the thrill of possibly being seen by passersby while exposing herself, she seems to want to be taken outdoors and repeatedly violated by unknown penises.
