Ruru Sanjo

Known affectionately as "Baa-chan" by her residents, this formidable landlady manages both the Gochiso apartments and the associated school supply shop. Though she is a tough, gun-toting figure, she possesses a compassionate side that emerges when she meets Hibiki. Recognizing his unwavering resolve, she becomes a crucial ally in his journey, actively assisting him with the intricate task of maintaining his female disguise while navigating life on campus.