Moe-Moe, formally named Tomoe Kitahara, manages the Sexy Commando Club at Wakame High School. She joined the club through a misunderstanding, initially believing it was a Mustache Club due to her personal fascination with facial hair. This interest stems from her family background, specifically her father's dedication to cultivating a "legendary blue mustache," an endeavor that reportedly led to his death. She shares this appreciation for mustaches with the club's founder, Masaru Hananakajima.

Within the club, Moe-Moe consistently encourages and supports all members, maintaining a positive presence during their activities and challenges. She frequently interacts with the club's mascot, Meso, a small yellow creature featuring blue mustache-like eyebrows and a zipper on its back. They spend significant time together, though the specifics of their interactions remain unspecified. Her narrative function centers on her managerial duties, her connection to mustache culture, and her supportive dynamic with the Sexy Commando members and Meso.