Eruru is a character from the anime film The Concierge, working at the extraordinary Hokkyoku Department Store where the clientele are all extinct animal species. Within this unique retail environment, Eruru holds the distinguished position of being the store president. His species is a great auk, a fact that is significant to his character as he dislikes being mistaken for a penguin.

In terms of personality, Eruru is portrayed as having a kind heart, and he shows particular recognition and support for the protagonist, a new concierge named Akino, who is noted for her own earnest and conscientious nature. Despite his high-ranking role as president, Eruru has a playful and somewhat whimsical side. One of his notable idiosyncrasies is his fondness for sliding across the store’s polished floors as if they were icy floes, a behavior that reflects his animal nature and adds a charming, lighthearted element to his character.

Eruru’s role in the story is largely one of a benevolent and behind-the-scenes presence. The protagonist, Akino, initially mistakes him for a customer, a misunderstanding that persists as she finds herself literally stepping on him during her duties. However, her colleagues are aware of who he truly is, and Eruru, along with other coworkers, is willing to help Akino as she struggles to fulfill increasingly impossible requests from demanding clients, often facing pressure from the floor manager, Toudo. His key relationship is with Akino, as he recognizes her good intentions and offers his support from behind-the-scenes, helping to foster a collaborative atmosphere among the staff. He does not have any notable special abilities beyond his unique skill for sliding across floors, which is presented as a personal quirk rather than a formal capability.