Chiaki Tamagawa works at a hotel front desk, navigating the demands of difficult guests and carrying significant stress from his job. To find relief, he volunteers at a rescue cat café, a place where he discovers peace and comfort among the feline residents. His routine takes an unexpected turn when a visitor, Rai Shindo, arrives and makes the startling request to adopt him as if he were a cat. Though initially shocked and resistant, Tamagawa follows Shindo home out of curiosity after the café manager playfully treats the situation as though he is indeed a cat. Shindo promises to care for him like a cherished pet.

Their relationship evolves from this unusual premise, deepening into romance through roleplaying and pet-like treatment. Over time, the couple grows closer, culminating in a strengthened bond and a contented life together. Tamagawa’s background includes finding therapeutic solace at the cat café, where he willingly cleans up after the cats and values the manager’s appreciation for his presence. His character is shaped by a stressful professional life and the comfort he draws from feline companionship, which leads him into a peculiar and fateful romance.