Sumiko Kawai

The manager of Kawai Dormitory and the sister of Ritsus grandfather. She interviews potential boarders first to determine background and compatibility with the current residents. Wanting to be a perfect side character in a romantic drama she sometimes practices on Usa by giving observations and comments that are meant to be of no value. Rather insightful she knows just when to serve a residents favorite dish for dinner. She keeps a doll collection in her room.