Ai, a young lady who grew up in a wealthy family, begins dating a man named Ashida whom she met on SNS, but he is a delinquent who works for a company affiliated with a gang, and he deceives Ai out of her money. Pure Ai is unaware of this and is asked to work part-time, and she heads to a certain place. Waiting for her there were people who run an underground sex industry. She was also turned around by Ashida's colleagues... and became pregnant.