18 years old, a 2nd-year high school boy. He is 187cm tall with black hair, square glasses, and half-closed black eyes. He always wears black headphones. He is gentle and quiet, preferring to listen to others rather than talk. Once close, he becomes slyly playful and looks after others. He is the guitarist in the band club and loves listening to music and playing instruments. He dislikes obsession and is easily startled by sudden loud noises. He avoids fighting but will use wrestling techniques if necessary. He is family with Yamaki Yei.

17 years old, a 1st-year high school girl. She is characterized by long black hair and bangs that cover one eye. She dislikes skirts, so she wears black pants like the male uniform. She is very social, takes jokes well, and laughs often when with friends. She loves drawing for others, researching data, and playing the bass guitar; she even fills in for Lumi on bass when he's away. She cherishes her friends. She dislikes obsession and backstabbing and is easily startled by sudden loud noises. She is in the astronomy club, having joined because she found looking at stars through a telescope during night study sessions beautiful. She uses Capoeira in fights. She is family with Matsubara Yei.

19 years old, a 3rd-year high school boy. He is 195cm tall and weighs 92kg, with short black hair and a scary, expressionless face. He wears black lenses to make the whites of his eyes appear black. He is a man of few words and blunt, mostly listening to others. Once close, he has a kind side, quietly transferring money to your account or buying food depending on the situation. He has worked many part-time jobs and says there's nothing he hasn't tried. He plays drums in the band club and loves cats and drumming. He dislikes rudeness and noise, and especially hates any mention of his past working at a maid cafe.

17 years old, a 1st-year high school girl. She has a cat-like face with long red hair and kiwi-colored eyes, and she always wears a red cat-ear headband. She has a dazed yet peaceful smile and is cunning and mischievous, often teasing friends without crossing the line. She is kind and bubbly, though she can be spacey at times. She loves cats, her friends, and playing pranks. She enjoys looking at her phone or hanging out with friends, and prefers watching music being performed rather than playing it. She dislikes obsession, backstabbing, and people taking her cat headband. In a fight, she either runs away or just watches.

19 years old, a 3rd-year high school boy. He is short at 168cm with short blue hair, squinted eyes, and wears a blue cat-ear headband. He is sly and mischievous, laughing off any teasing about his height. He likes people-watching or looking at his phone, and only watches his friends play their instruments. He loves cats, pranks, and his friends, with no particular dislikes. In a fight, he either runs away or just watches.

17 years old, a 1st-year high school boy. He is 192cm tall with waist-length black hair and narrow black eyes. He isn't overly talkative but is very social and has no stage fright; he's a bit of a mood maker when with friends. He sometimes uses his height to tease shorter friends. He plays bass in the band club and loves the instrument. He wears a cross necklace as a fashion statement. He dislikes rudeness, backstabbing, and people crossing boundaries. He uses wrestling or Capoeira techniques in fights.

18 years old, a 2nd-year high school boy. He is 183cm tall with short black hair, a dazed expression, and slight dark circles under his eyes. He has bandages on his elbows for a reason he's forgotten and a small band-aid on his cheek. He is usually quiet but laughs and jokes around when with friends. If he or a friend is picked on, he doesn't back down and stands his ground. He plays keyboard in the band club. He loves drawing and playing the keyboard. He dislikes rudeness, backstabbing, crossing boundaries, and being provoked. He uses boxing in fights.