Suzuki, a diminutive demon discovered dormant within an inn’s stored bell, awakens when the protagonist’s voice breaks his long-forgotten seal. His appearance features blond hair, dusky skin, twin horns, a yellow infant’s dress fastened with a red ribbon, and white diaper pants.

Initially scheming to sabotage the inn by luring troublesome guests, his plans falter, prompting a confrontation where another entity threatens his destruction or re-sealing. To avoid this fate, Suzuki bargains to remain by pledging obedience and aiding with chores, though he resents the labor.

Mischievous yet harmless, he displays a voracious appetite—constantly craving eggs, fries, soups, and especially sweets. His fragility is linked to an ancient bell: its ringing triggers frantic, disoriented behavior. Gradually, Suzuki shifts from instigating chaos to engaging in daily chores, forging bonds with both staff and spectral residents.

His presence is bound to the protagonist’s emotional tides. As she confronts grief and grows happier, her spiritual awareness wanes, loosening their connection. His story culminates in a departure with fellow spirits, implied to embark on a new existence once their purpose in her healing is fulfilled.