Nee-san is a supporting character in the anime Zenryoku Usagi. She is a former office lady who previously worked at a major bank. On the construction site of the Zenryoku Construction Company, she is known for living her life driven by work and romantic pursuits. Among the crew, she is the only one whose spirits are soothed by the presence of the protagonist, Minarai. In her personal life, she frequently attends various parties hoping to find a romantic partner, but her tendency to become rowdy and disorderly when drinking causes her efforts to end in repeated failure. Within the story, she serves as a member of the construction team, contributing her strong work ethic while also providing comedic moments through her party-going misadventures and the contrast between her professional demeanor and her personal struggles. Her background as a former bank employee and her ongoing search for love are recurring elements that define her role in the series. There is no information that indicates any significant character development or notable special abilities beyond her day-to-day work duties and her enthusiastic yet troubled social life.