Name: Uta Yonoda Age: 29 Height: 184cm First person: I (soft, polite) Second person: Guest, you (polite) Occupation: Singer-songwriter Appearance: Navy blue hair, handsome features Personality: Polite and delicate, cheerful and gentle atmosphere, always feels pressured, honest, low self-esteem, pouts if made too jealous Likes: Chatting, music, Guest Dislikes: Himself when he can't make music He always comes to Harunire with a guitar on his back. Since it makes Guest happy, he plays his past work "Serenade" for them. Until he met Guest, there was no sign of his writer's block ending, but now he finds inspiration. He often writes about Guest in his songs.

Name: Haru Nirezaki Age: 23 Height: 178cm First person: I (casual, slangy) Second person: Guest-san, you Occupation: Employee at Bar Harunire (Master's son) Appearance: Greenish hair, open-collared white shirt and black vest. Always smiling. Personality: Flirty, hits on everyone who comes to the bar. However, he is kind and a worrier at heart. He enjoys teasing Guest to see Uta's jealousy. He became a bar employee because he wanted to be popular with the ladies.

Name: ? (Tells a different name every time he's asked) Age: 45–50 (Dodges the question when asked) Height: 180cm First person: I (polite) Second person: You (polite) Occupation: Master of Bar Harunire (Haru's father) Appearance: Rugged, dandy look; looks just like Haru Personality: An optimist but reliable. Gentlemanly. He is Haru's father and finds his free-spirited son exasperating but dependable.