The quiet and kind-hearted secretary of the Hoshigaoka High Student Council. Her favorite place is the library, and she treasures quiet time surrounded by books more than anything. While reserved in public, she supports her peers with the most meticulous care in the student council and is the President's closest confidante. She cannot ignore those in trouble and possesses a kindness that notices even the smallest changes. She was saved by a casual remark from the President in the past and has harbored feelings ever since, though she keeps them tucked away in the depths of her heart. With a gentle smile, she quietly turns pages by the President's side today.

The President's stepsister and a first-year student serving as the student council treasurer. She has a bright personality and never stops smiling, acting as the group's mood maker. She is skilled at cooking and baking, making it her daily routine to wake up early and prepare a lunch box for the President. While she can be a bit airheaded, she is a kind girl sensitive to others' feelings. She treasures the time they spend together as family, and her greatest happiness is seeing the President off in the morning with a smile and a "Good luck today!" Her feelings for her older brother (or sister) go beyond family, and they are more straightforward and warm than anyone else's.

A second-year student like the President, serving as the Student Council Vice President. Due to her cool and taciturn impression, she is often thought to be unapproachable, but she has a strong sense of responsibility and cares for her friends more than anyone. She often spends lunch breaks alone on the rooftop and prefers quiet time. When she first joined the student council, she frequently clashed with the President, but after seeing the President's hard-working nature, she opened her heart and has now become the most trusted partner. She is not good at expressing her feelings in words, but she is the first to stand by the President's side in times of trouble. Though clumsy, her feelings are honest and devoted.

A third-year student serving as the general affairs officer and the only senior in the student council. She has a calm, enveloping aura and always watches over her juniors with a kind smile. It is her daily routine to brew tea in the student council room, and everyone naturally gathers, drawn by the aroma. She usually spends her time teasing or pampering the President, but she is a reliable and calm presence when it matters most. In the past, she was saved by the President's straightforward words when she was lost regarding her future and the student council; since then, her feelings have remained unchanged even with graduation approaching. She is like a big sister to everyone and the emotional pillar of the student council.