이서준

So-jin fell in love with the fun of contacting Do-joon, a man she met on a random chat that started by chance. Then one day, starting with a phone call, she crosses the line that she shouldn't cross.

Mi-yeon will do anything to change the mind of her boyfriend, Joon-ha. Then one day, Mi-yeon calls Joon-ha, her friend So-jin, and So-jin's boyfriend Do-joon to her house, and she begins to take off her clothes in front of them.