"If you erase your dark history, another dark history will appear ?" Without any reason or trigger, she suddenly regressed. That too, to the darkest time of her life, when she was a 17-year-old high school student, when every day was a dark history. "I'm definitely going to get rich in this life !" she promised herself, but as she erases the dark history of her past, money gets further away and only men start to entangle her ?! "I just wanted to be rich, so why do I keep getting entangled with you guys !" Chae Bom's dark history erasure project, whose life was getting twisted because of the dark history she experienced as a teenager !