When Sakimi Endo was betrayed by her boyfriend, she finds herself with a tremendous amount of debt. Not being able to pay the debt, she's now compelled into prostitution, having sex with countless strangers. Her life has switched from heaven to hell in the blink of an eye. Just when she thinks her life is in despair forever, she receives a mysterious letter. This letter may offer her a way out of her nightmare, or will it...

This is presented in the original Japanese with English subtitles.