Seiichi Kamikawa is a 20-year-old university student belonging to the Kamikawa family. Upon reaching puberty, members of this family manifest special abilities in their hands. These inherited powers allow Seiichi to perform a unique erotic massage technique rooted in the principles of the Indian text Kama Sutra, representing the Kamikawa family's secret style. This technique forms the foundation of the family business.

Compelled by the family head, Seiichi begins working within this enterprise. His first assignment involves performing the massage for Kaiko, a company executive. Kaiko intends to gift this experience to her subordinate Rui, with whom she shares a close two-year relationship. Due to Rui's strong aversion to men, exclusive attraction to women, and generally aggressive demeanor, Kaiko insists on personally testing Seiichi's technique first. This situation places his inherited abilities within a professional setting.

The narrative depicts Seiichi engaging with multiple clients beyond Kaiko and Rui. His abilities lead him to encounter various women, including an idol named Ayumi, though the specific challenges or outcomes of that assignment remain less detailed. Characterized as a typical energetic young college student, he actively utilizes his "magic hands" gift. This gift induces states of ecstasy in women, facilitating sequential encounters with numerous women. His role centers on applying the specialized massage technique inherited through his family lineage within professional service contexts.