Hokenshitsu no Sensei

Me, Seo Taeseok.
Once the top blade runner of the headquarters, now a countryside gangster holed up in the sticks with my younger brother.
A country bumpkin who beats people when told to beat them, and collects money when told to collect it.
Then one day, at the high school nurse's office where I went to find my brother, I met a small woman.
Why is a woman wearing a doctor's coat over long sleeves turning me on so much?