Having sex with my lover's best friend because she looks a lot like a JAV actress

Inaba Yuma heard that Kanon, her best friend, was traveling with a man who was not her boyfriend, and she was confused. On the day of the trip, Yuma went to the house of Hajime, Kanon's boyfriend. Yuma, who secretly loves Hajime, discovers that she resembles Hajime's favorite AV actress. When the two of them were watching an AV movie together, Yuma courageously said, “Do you want to do something like this?”