18+ Sensei Ano ne.

Ineffectual high-school teacher Kakenshi catches his (male) student Nakamura using school computers after-hours to make naughty crossdressing webcam shows. Kakenshi persuades Nakamura to stop, but only because Nakamura has a new hobby: seducing Kakenshi! Will Kakenshi surrender his heterosexuality and give in to his cute crossdressing student's affections?

(Source: MU)