Sumiko Kawai

Sumiko Kawai manages the Kawai Dormitory and is the sister of Ritsu's grandfather. She interviews prospective residents to judge their backgrounds and compatibility, and her perceptiveness helps her know when to serve someone's favorite meal. Sumiko wants to be a perfect side character in a romance and sometimes practices on Usa with comments meant to be of no value. She also keeps a doll collection in her room.