Tired of enduring taunts as a 'clumsy good-for-nothing,' Hana Aoi decides to take on a part-time gig at a rundown zoo to prove her worth. Amidst the quirky setting and sparse visitors, Hana finds solace in tending to the adorable zoo animals until a chance encounter with a colossal, talking rabbit alters her perspective. Unveiling the rabbit as the zoo's enigmatic director, Shiina reveals a haunting curse that transforms animals into humanoid beings. To break the curse, Shiina must revamp the zoo into a global marvel by showcasing his genuine love for creatures. However, his penchant for amusement clashes with the responsibility of animal care, prompting Hana's involvement. Bound by a contract and the enigmatic rabbit's demands, Hana embarks on a journey where boundaries blur between human and animal, challenging her to navigate a realm where metamorphosis reigns supreme.