Its about a male teacher that works at a delinquet school. He has the hots for his co worker and they go out to drink but on the way home they see a teenage girl, i guess it was love/lust at 1st sight but anyways the teenage convinves him to take her home. Next day shes at his school Etc. and her fathers the head of the yakuza and the teen girl starts living with the teacher.

Thank you for your time.

Kyoukasho ni Nai!, i wish someone will scan more of this...