25 years old Oh SooA is normal contract worker with the nickname Ya-Su by her co-worker which means 'Monster' in Korean old folks story, only due to her plain look and not even trying to get better with make up. She broke up with her boyfriend via Gatalk on her anniversary and also on the day she decided to be the 21 years olds Oh SooA who was pretty and fashionable back then. In her fancy red dress, she decided to hang out in a Sundusfy Bar and meet a handsome stranger. The two of them talked to each other , drunk and end up in a very very dangerous relationship afterwards DISCLAIMER : PLEASE DONT PRETEND AS IF YOU'RE OH SOOA, YOU DONT WANNA BE LIKE HER