Kako, an education-focused mother, wants her beloved son Kenichi to walk the elite path in the future by any means. She has gone through numerous tutors, but none have quite met her discerning eye. Today, a new tutor arrives... The moment she opens the door, Kako feels a thunderbolt through her body. (Oh my! What a delightful young man to my taste!!) From that day on, Kako's seduction plan, disguised as advanced education for her son, begins...