Five suicidal people meet on the Internet and form a 'suicide group'. They arrange to meet at one of the member's homes to spend their last hours together.
Spread over three time periods (Summer 10 Years Ago/Summer 5 Years Ago/This Summer), Lost Virgin tells the tale of good-time girl Chisato (Sasaki), hungry for new experiences yet ultimately in search of emotional fulfilment.
Reimu, an office worker, has been having strange dreams lately and is not feeling well, so she takes her junior from college, Ariya, to her favorite gay bar...