The long-awaited live-action adaptation of the hugely popular author "Shiwasuno Oji"'s smash hit! Tatsuji is an unpopular boy who has confessed his feelings to girls 100 times and been rejected 100 times. His five female friends decide to cheer him up by throwing him a karaoke party! All of the girls have boyfriends. Tatsuji, a guy who is not popular with these girls, wants to hear about their sex stories with their boyfriends to soothe the pain of their broken hearts... and from there, the girls who have boyfriends start having "lovey-dovey, erotic sex like you would with a boyfriend"...!?