Inu is an anthropomorphic dog character within the social circle of the main crocodile protagonist. Her most significant relationship is a romantic one with Mogura (Mole), her lover, demonstrated through shared moments like a duet performance. She contributes to the group's vibrant atmosphere with her bright and cute demeanor. Her background, origin, family, occupation, and personal history outside these established relationships remain unexplored. No character development or independent story arcs for Inu are documented across the original manga, film adaptation, or related media. The sequel manga, "100 Nichi Go ni Shinu Nezumi," focuses on the mouse character and provides no additional details about Inu. Official media offers no further exploration of her character beyond these limited interactions and traits.