Oku-chan possesses distinctive physical features, including a prominent groin-like snout and a notably substantial appetite reflecting a consistent enjoyment of food. He maintains workplace relationships with colleagues Nonaka and Yukari, sharing activities like lunch outings. During one restaurant visit, he displays moderate culinary daring by selecting a level 5 spicy curry, positioning him between Nonaka's level 3 choice and Yukari's level 10 challenge. His physiological reaction involved visible discomfort, sweating, and distress, though less severe than Yukari's subsequent reaction. Beyond eating scenes, Oku-chan participates in expressive sequences; one segment features him engaging in rhythmic hip-hop style movements during an abstract, jazz-accompanied interlude, showcasing a playful aspect through physical expression.