Appearance: Brown eyes and black hair tied in a bun. Personality: Pure, serious, and hardworking. In this mysterious department store where all customers are animals, she struggles through failures and mistakes, but grows as she gives her all to fulfill customer requests under the watchful eyes of her seniors.

A tall man with narrow eyes and a flamboyant, dandy personality. He appears out of nowhere to order Akino to undergo restaurant training, warmly teaching her the importance of meticulous service and teamwork. While he seems cool and affected at first glance, he is a caring mentor who keeps a close eye on Akino's growth. He is flexible enough to readily acknowledge and take a liking to her efforts when she runs around trying to solve difficult missions and secures the cooperation of those around her.

The President. Personality: Elusive, mysterious, and philosophical. He throws meaningful questions at the rookie concierge Akino, such as "Who do you think survives: the strong or the wise?", guiding and teasing her at the same time. He provides crucial hints for her growth. He is always walking around the department store, appearing at the perfect moment when trouble is brewing or when Akino is troubled. He is always calm and rarely shows strong emotion, but his words carry great weight.

A tall, well-built man with a cool and composed personality. He serves as a floor walker at the department store, supporting Akino and the other concierges from a calm perspective. He is smart and objective, rarely showing emotion and judging situations rationally. He holds strict, objective views, such as believing that the extinction of V.I.A. (Extinct Species) was their own responsibility due to a lack of vigilance.