Mrs. Mutsumi is Takuro's wife and Goro's mother, and they own an inn called "Tsuruya." She organized a matchmaking event for her son Goro with Kurumi Kimihoshi, but Goro rejected the proposal without knowing that it was his friend Kimihoshi who had been rejected. Later, when Kimihoshi visited Goro in his apartment after he refused to attend the meeting, Goro learned that she was actually the prospective bride.