College Girl’s Red Diary (2021)

College Girl’s Red Diary | 여대생의 빨간 일기| Yoo Ni, a college freshman, goes on a blind date with Min Cheol, a senior. Though initially attracted, Yoo Ni later wants time apart. Her friend Hee Jin introduces her to Ah Ra, a skilled seductress, who trains Yoo Ni in sexual techniques.