"I heard this was going to be a thorough dissection of Rion Izumi~" -- During the filming of her second-ever anal sex, she's subjected to negotiation tactics. Rion, whose charm lies in her innocent, underdeveloped-looking body, spreads her legs and uses both hands to open her pussy, then turns around to spread her asshole open. When fingered and tormented with a vibrator and dildo, she easily makes her pussy twitch and cum, and further stimulation leaves her in a blissfully confused state. While she's writhing and moaning, "Ah, what do I do~, I'm cumming, cumming~!", anal beads are inserted into her ass, making her cum and writhe. She mistakes the toys for fingers and says, "You put your fingers in my ass, didn't you?" The male actors proceed with a strategy of gradually teasing her ass during the bed scene to get her in the mood, then try the bed scene again. They thoroughly caress Rion, who becomes okay with anything when immersed in pleasure, and lick her ass too... Even when she says "No~", they keep teasing her ass with their tongues! Pretending their fingers slipped, they attack both her pussy and asshole, and though she resists, she eventually says "It feels good..." and cums while squirting with each thrust. When Rion, who wants a rock-hard dick in her pussy, begs for it, they give her intense thrusting, and she has multiple orgasms, screaming "Amazing~! I'm cumming~!" While she's fallen into pleasure, they thrust into her pussy and tease her ass to gradually get her used to it, and with her saying "Give it to me inside~", they creampie her. After calming down, they ask her opinion on anal again, and when she says "It wasn't bad," they somehow persuade her into anal sex. Once she's made up her mind, they use a dildo and vibrator to loosen her ass, and she starts accepting two fingers from two men. As she's moaning and writhing from a hard dick thrusting deep into her pussy, she's also attacked from behind in doggy style, and while she's dazed with pleasure, they go for anal sex! At first she says "Ah, it's tight!" as the dick slowly sinks into her ass, but soon she takes it all the way in and writhes with teary eyes. As the pistoning gradually intensifies, her anal pleasure awakens and she climaxes...! In a sandwich position with two male actors, she accepts two dicks in her ass and pussy, and writhes in ecstasy, saying "Ah, what is this! It feels so good~" As they thrust alternately into her ass and pussy and creampie her, another dick thrusts into her pussy dripping with cum... For the finish, her ass is also thoroughly creampied.