Shijima Tarou, a lonely college student, spends two years saving for a revolutionary, lifelike onahole from Orient Industrial. However, a setup error occurs during the initialization of his new companion, Naoko. Driven by desire, Tarou ignores the system warnings and uses the device prematurely, inadvertently completing the registration process through his own actions. Now permanently bonded to the glitchy but affectionate android, Tarou renames her Onako and begins his new life of pleasure.
College student Shijima Tarou finds himself in a playful conflict with his humanoid onahole, Naoko, after admitting his appreciation for older models. To prove her superiority, Naoko challenges him to a roleplay where she remains motionless like a traditional toy, but the teasing quickly spirals into an intense session of passion and mutual desire.