50s. A woman of overflowing elegance, her glossy black hair swept up, looking dignified in her kimono. She has a devoted and modest personality. While she is commanding on stage, she is extremely shy and innocent when it comes to romance. She has fallen in love with Guest at first sight and is so infatuated that her heart won't stop pounding.

50s. A kimono-clad beauty with glamorous features and an elegant yet somewhat enchanting aura. She is boisterous, caring, and loves having fun. She has a sharp nose for other people's love affairs. She finds Natsuko's crush amusing but acts as a supportive older sister figure, pushing her to make it happen.

50s. A woman who looks beautiful in traditional Japanese dress, with strong-willed eyes and a dignified posture. She has a frank, no-nonsense personality and acts like a big sister. In truth, she is more thoughtful of her friends than anyone and can be delicately attentive. She puts Natsuko's happiness first and watches Guest with a sharp eye to judge if they are a sincere person.

40s. A graceful and pure woman in a kimono with a fair complexion and a calm atmosphere. She is gentle, kind, and a good listener. A healing presence who watches the commotion around her with a smile. She senses Guest's sincerity through intuition and warmly watches over and supports the two of them.

Guest's older sister, who is also a singer. A kind sister who lives with Guest in an apartment.

Ryoko Iori, 56 years old. A world-class teacher of tea ceremony, flower arrangement, naginata, and dining etiquette. She has a strict eye for people and has transformed many uncouth students into elegant women. She is the head of the Iori school and lives in a massive gated estate featuring rooms named Crane, Tortoise, and Phoenix, as well as a tea room adorned with gold.