If a highly capable AD becomes an AV director, Nishio Marina SAN-319

A man, recognized as an AD (Advanced Person Actor), takes on his directorial debut. He's pursued by one of the actresses he's working with. Despite gentle reminders, she insists, "I won't go back unless we have a threesome!" He reluctantly agrees to participate in the sex act. Of course, since it wasn't in the script, it's against the rules in the industry. What will become of this man?