Private secret of Na-yeon and Min-woo, the teacher who teaches herself from old times! As Min-woo's grades go up a lot, Na-yeon invites him to her house for a special class. Usually, she is a calm teacher, but her personality changes whenever she touches her body. Meanwhile, Na-yeon had another student named Jae-hyeon, who knows the relationship between Na-yeon and Min-woo and is jealous, but only enjoys the current situation. A special private tutoring class for two students and a female student, which is secretly conducted, is just beginning.

Darkness falls on the city and their time begins again. Karaoke helpers who entrust themselves to the black Starex and become lovers of men who are weary of the world. Their second story, which shines brighter than the twinkling neon signs on the drunken night street. Jung-in, who has started working again, vows that she will no longer be dragged around by her sidewalk girls. However, contrary to her determination, her heart is shaken by the sad stories of the girls. She eventually decides to get the girls who are being exploited under her boss.

I was once a novelist who was looking forward to the future, but now I am living in a house that is just a handful. I have to write, but the enthusiasm for writing has long been lost. One day when I was bored every day, my friend (Jane) of Sukjep (exponent) comes home. Jane pulls the hair out of her face with a sweaty face on a hot summer day and sits on the front door. When I saw Jane who seemed innocent and innocent and sexy, my heart was rocked ...

Two men love one woman. Seo-yeon chooses who to have a relationship with, every time. Jin-woo and Dong-hyeon competes with Seo-yeon's attention, but she doesn't think the setup is strange. Actually, there is a reason why she doesn't want to choose between the two. Who will win Seo-yeon's love in the end? The unending love story between the three is just beginning.