The one who came for "Cervix Development" was Kanna Amane. She speaks in a gentle manner, giving off a refined and delicate young lady image. When asked about her experience with cervical orgasms while glancing at the prepared dildo, she said she's "still inexperienced." However, she seems to understand it intellectually, saying, "The deeper part of the womb feels it." First, she was asked to practice self-pleasure with the dildo. While fingering her own pussy and clit, she slowly slides the thick dildo in and out of her vagina. As she heats up, she quickly reaches climax, moaning, "Ah... I'm cumming!" Next, she straddles a fake dick standing on the floor, lowering her hips to insert it. She grinds it deep into her vagina, gasping from the cervical stimulation hitting her womb, and furiously bounces her hips up and down to reach climax again. Unable to resist the fierce pistoning that thrusts deep inside, Kanna cums helplessly. Her moans turn into agonized groans, her entire body flushing pink as she writhes intensely. Moving to the bed for the main act, she receives a "cervix lecture" with fingering while her pubic bone is pressed, letting out even louder cries from the sticky caresses. Attacked inside her vagina with a vibrator and electric massager, plus vibrations on her pubic bone, she shows intense agony with her eyes rolling back. Her sensitive pussy is teased with cunnilingus, and while desperately sucking the dick, she savors the stimulation to her lower body. Once ready, they finally unite. Her wet eyes and straight black long hair flying wildly, cheeks flushed, drool nearly dripping as she moans—this sight fiercely shakes one's reason. The thick dick's thrusts resonate in her womb, and her convulsing figure from the vibrations pushes the male actor to his limit. He quickly pulls out and ejaculates forcefully onto her belly. Driven to the edge of pleasure by relentless caresses from both upper and lower body, she gushes and writhes under the wave attacks of a vibrator, electric massager, and fingering. She deep-throats two dicks in a greedy double blowjob, choking and sobbing while a thick dick is slammed into her pussy. With added electric massager stimulation, they plunge into a heated sex session with nonstop moans. With a vibrator hidden deep in her vagina, the thick pistoning relentlessly attacks the depths of her womb, and Kanna wildly loses control. After cum is sprayed on her ass, she's immediately penetrated by the next dick, and two consecutive finishing shots are fired onto her face as she screams and convulses. From Kanna's expression as she collapses in exhaustion, it's clear that her cervix development is complete.