With a teaching career spanning 45 years, the veteran teacher Chiyoko is still fighting on the front lines of education after being rehired and turning 70. The school trusts Chiyoko deeply, but in reality, there is something she values more than education: affairs with her students. Secretly draining the vitality of the young is Chiyoko's pleasure and the secret to her youth. However, even Chiyoko struggles to control the younger generation of grandchildren-aged students. She finds herself being pressured by a student to have a relationship within the school…
