Maru, a spirit-like entity inhabiting a supernatural shop, stands as the blue-haired counterpart to Moro’s pink-toned presence. Her long, curly azure locks cascade into pigtails, framing blue eyes that mirror her "gothic" attire—a stark contrast to Moro’s ethereal, "angelic" aesthetic. Though bound by maturity, Maru’s temperament flares during clashes with Moro, particularly when games or chores ignite Moro’s mischievous cheating. Yet their bond remains unshaken, evident in clasped hands or synchronized dances, a duality of friction and devotion. Existing beyond biological needs, Maru and Moro lack souls or organs, their forms sustained by the shop’s energy. Their survival hinges on periodic rest to sustain the shop’s visibility and operations, trapping them eternally within its walls. Initially echoing the original owner’s commands as loyal "yes-men," their allegiance transfers seamlessly to the new proprietor after the founder’s disappearance, offering solace and aid in rituals, altar preparations, and shop management. Programmed for perpetual cheer, both defy their coding with raw emotional depth—Maru’s tears flow freely during moments of sorrow, her sentience undeniable. She deciphers magazines and scrawls her name, though writing otherwise eludes her. Soft rock rhythms often animate their idle hours, spurring air instrument performances. Seasonal wardrobes shift between summer and winter designs, while unworn kimonos gather dust, reminders of their confinement. Years after the shop’s founder vanishes, Maru and Moro persist as steadfast aides to the new owner, their playful rivalry and loyalty unwavering amid evolving shop dynamics. They embody the establishment’s enduring mystery—guardians adapting to leadership changes yet eternally anchored to their purpose, hearts oscillating between joy and vulnerability.