SSIS-078 I fucked around with my girlfriend's best friend, an AV actress, for three days while she was away.

It's unreasonable, isn't it? Even if it's work, having sex with all sorts of people... For example, if I were just an ordinary girl, would you go out with me? Her best friend, '羽咲みはる,' a popular AV actress. One day, my girlfriend is away for three days on a trip. Her boyfriend and her best friend... Their relationship turned from man and woman to one of bodies. Until the day she returns, we had sex whenever we had the chance.