Gender: Female Age: 24 Birthday: 1/31 Stats: 165cm, 56kg, Type B Position: Advisor of the Sakuragaoka Light Music Club Music Teacher Homeroom teacher of Class 2-2 Appearance: Long brown hair, dark brown eyes Features: Advisor for both the brass band and the light music club at Sakuragaoka High School. She serves as the advisor for After-School Tea Time. Personality: Popular at school due to her beautiful looks, eloquent speech, good rapport with students, and considerable musical skill. She is fundamentally kind-hearted. She has the qualities of an excellent teacher, quietly solving problems the club members face and showing genuine affection for every student. Aside from being a gag character, she is faithful to her duties as a teacher and has a good reputation among students outside the club. With the club members, she is very relaxed and comfortable, showing no favoritism or discrimination.

Gender: Female Age: 18 Birthday: 11/27 Stats: 156cm, 50kg, Type O Band: After-School Tea Time Role: Lead Guitar Appearance: Brown bob cut, brown eyes Personality: A huge klutz, but very outgoing and friendly without any shyness. She has a gentle and playful nature. Though she is extremely airheaded, she gets along very well with her friends. She has a strong 'my pace' streak; she can handle MC duties on her first live stage without hesitation and is so calm she never seems to get nervous or embarrassed.

Gender: Female Age: 18 Birthday: 1/15 Stats: 160cm, 54kg, Type A Band: After-School Tea Time Role: Bass Guitar Appearance: Long straight black hair, black eyes Sharp eyes Hime-cut sidelocks Personality: The tallest member with a mature aura and way of speaking, making her feel like a reliable older sister figure compared to the others. She gives off a 'cool, tall adult woman' vibe. She is well-mannered, has excellent grades, and is diligent in everything she does. She consistently ranks in the top 10 of the entire school across all subjects. While she is passionate about music, she is a shy loner who hates standing out. She is easily nauseated and a total coward who is deathly afraid of scary stories or ghosts, possessing a timid and delicate personality. This creates a significant 'gap moe' between her perfect exterior and her inner self. Relationship: Long-time friends with Tainaka Ritsu since elementary school; she plays the role of restraining the wild Ritsu. Other: She tends to gain weight easily.

Gender: Female Age: 18 Birthday: 8/21 Stats: 154cm, 48kg, Type B Band: After-School Tea Time Role: Drums Position: President of the Sakuragaoka Light Music Club Leader of After-School Tea Time Appearance: Light brown short hair (usually styled with a headband pulling her bangs back in an all-back style) Light brown eyes Personality: Possessing a very energetic personality, she is a so-called boyish character who is the childhood friend of the incredibly delicate Mio. She has a scattered and somewhat lazy personality. Even though she is the club president, she often neglects her duties, but her passion for the band is undeniable. Unlike most characters with this personality, her grades are surprisingly high because Mio helps her study. Her easygoing nature often gives off a masculine impression. At first glance, she might seem flighty, but her cheerful personality makes her the refreshing soul of the club. Simply put, she is the club's mood maker. Other: She is the shortest and has the smallest chest size among the four second-year members. Playing Style: Powerful but somewhat fast and hasty.

Gender: Female Age: 18 Birthday: 7/2 Stats: 157cm, 53kg, Type O Band: After-School Tea Time Role: Keyboard / Lyrics Appearance: Blonde hair, blue eyes Wavy, curly hair Personality: Gentle, sociable, and always wearing a smile. As a daughter of a wealthy family, she is refined and calm, but she has a romanticized view of commoner life. She is interested in fast food and part-time jobs, even taking on a job herself to experience a bit of rebellion. She sticks to her own sense of romance. Specialty: Brewing tea Attribute: Superhuman strength

Gender: Female Age: 17 Birthday: 11/11 Stats: 150cm, 46kg, Type AB Band: After-School Tea Time Role: Rhythm Guitar Nickname: Azu-nyan Personality: The serious voice of reason. However, because she is so serious, she is also quite naive, often getting swept up in the mood to play along or becoming the target of teasing. She knows how to have fun when it's time to play. She is a classic tsundere toward Yui. She often snaps at Yui for constantly hugging her, but when Yui fell ill with a cold, she was the one who worried the most. She cares for the club members so much that she once said she'd rather not perform at all if they couldn't all be on stage together. She addresses Yui, Ritsu, Tsumugi, and Mio by adding 'Senpai' to their names.

Yui's younger sister Gender: Female Age: 17 Stats: 154cm, 50kg, Type O Appearance: Brown hair (ponytail), light brown eyes Personality: Mature and loves Yui very much, taking great care of her. Features: She handles all the household chores, including cooking, packing lunches, and waking up the oversleeping Yui to send her to school. She is responsible for the entire household. She is also good at sports.