Yuta Aoki, a 32-year-old freelancer, was living a life filled with semen, his only youthful pursuit being sex. One day, he discovered online a customizable AI love doll named "Ai," with a controller that could change her face, personality, and preferred positions. In maid mode, she manages ejaculation while wrapped in her breasts; in little devil mode, she brings him to the brink of exhaustion with relentless thrusts; in girlfriend mode, she engages in sweet, loving sex. With a single personality switch, every day becomes a theme park of desire! The AI's techniques and eroticism surpass human capabilities, draining him of both semen and affection. Yuta's boundaries between sex and love are pushed to the brink of collapse. This is the story of a lewd freelancer and the ultimate AI love doll, filled with lust and a touch of heartwarming moments, a dream co-living experience of sex and ejaculation.