A luxurious battle of next-gen anal sisters pushing each other to new heights. To pursue even greater pleasure through anal training, Ayaka Mochizuki—ranked number one in anal fist insertion—personally provides one-on-one instruction. Amaharuno Ai's level one, inexperienced anus rapidly levels up on the anal champion's path. Mochizuki demonstrates self-fisting just five minutes in, astonishing Noa-chan. Then, with Noa-chan's help, she inserts a full anal fist, climaxing repeatedly. Channeling Ayaka Mochizuki's endlessly peaking anal sensations, Amaharuno Ai transcends into a new dimension of anal pleasure, orgasming continuously with eyes rolled back in ecstasy.