Rion likes to study in the classroom on weekends. Sometimes, he is alone and gets excited, witnessing a teacher's training after catching him masturbating in the empty classroom. Initially resistant, Rion gradually gets enveloped by pleasure. His ultra-sensitive nipples are teased repeatedly, and his developing pussy is mercilessly penetrated by the teacher's cock. Rion gradually transforms into a lewd woman, accepting and embracing his new nature.
