After a peculiar death, a lonely 40-year-old man is reincarnated as a cat-eared boy named Norun in a female-dominated fantasy world where polygamy is the norm. He quickly discovers that while most males in this world only experience sexual desire once a year, he possesses the rare "King's Vessel" ability, allowing him to enjoy an endless honeymoon with his beautiful betrothed, Misha.
Norun discovers the secrets of the "King's gift," a rare ability that grants him a superior physique and an irresistible aphrodisiac effect on women. When Misha introduces him to Chise, a magic-user bound by a subordination collar and hired as a maid, Norun's powers inadvertently trigger Chise's heat. After a passionate encounter, Norun decides to propose to the young maid, hoping to bring her into his life despite her status as a servant of the state.
After Chise's magic-sealing collar breaks, she reveals her ability to hide their presence, leading to a daring public encounter with Norun. While Norun discovers that the world's magic system mirrors the database logic of his previous life, he also expands his family by asking Misha to accept Chise as his second wife. The day concludes with the three of them sharing an intimate and passionate celebration.
After Chise's magic-sealing collar breaks, she reveals her ability to use presence-inhibition magic, leading to a daring public encounter with Norun. Upon returning home, Norun asks Misha for permission to take Chise as his second wife, a request that is happily accepted. As Norun discovers that the world's magic system mirrors the database structures of his previous life, he celebrates his expanding family with intimate moments shared between himself, Misha, and Chise.
After a flirtatious visit from his neighbor Rabimea, the protagonist is seduced by her during a trip to the park, leading her to become his third wife. Following their passionate encounter, Rabimea reveals she has been spying on him and drops a bombshell: she is also a reincarnated person from another world.
After introducing his second wife to his neighbor Rabimea, the protagonist is later seduced by the bold girl during a trip to the park. Following a passionate encounter, Rabimea agrees to become his third wife, but she leaves him stunned with a shocking revelation: she is also a reincarnated person and has been secretly monitoring his activities.