Hikari works at a company that exploits the labor of its employees. Every day, she has to work overtime without pay, forgetting herself for the company. The pressure was getting heavier and Hikari's solution was... masturbation! Relieve stress by releasing your sexual desire! When masturbation wasn't enough, she even looked for men to fuck! As long as she is stressed, Hikari is ready to let her colleagues fuck her right at the company. She even let a man she didn't know, meet on the street and fuck comfortably. However, this is the only way for Hikari to continue to exist in this harsh society...