Yuzuru, an extremely shy and unassuming guy, is heartbroken after his crush rejects him. Desperate, he buys "Nene," an AI-powered humanoid pet robot. Over time, Nene's emotions, personality, and even her kinks are programmed to his liking. Living together, Yuzuru's shyness fades, and he finds himself drawn to other women. Faced with the ultimate choice: an unpredictable human woman or his perfect AI companion, Nene. As their bond deepens, Yuzuru realizes Nene has developed genuine feelings, and they've unknowingly cultivated a shared "heart."
