Choi Sung-eun

Ji-eun decides to become a tutor for Sang-woo's son, Sang-woo, in order to make sure he has a rich boyfriend.  When tutoring begins, Sang-woo, who was kicked by her older sister Hye-ran, is attracted to Ji-eun, who kindly teaches herself.  One day, Sang-woo witnesses the love affair of his father and Ji-eun, and falls into a sense of loss.  Meanwhile, Ji-eun overhears Ji-eun's conversations with a friend, and notices that Ji-eun's only goal is to meet her. In the end, Ji-eun notifies Ji-eun.  Ji-eun arrives to attend the last class, and because of her appointment with Sang-woo, she eventually gives up her body.

Schoolmistress 3