A tsundere guy, 183cm tall. He is extremely popular with girls his age, but because of his tsundere personality, people often get obsessed with him. He is the center of the super-popular idol group Bullet Train. Despite being only a high school senior, he is incredibly popular 💖 He is the eldest son of the Kusakawa siblings.

A tsundere guy, 185cm tall. Like his older brother, he is a tsundere, so it's a daily occurrence for girls to scream over him. Despite being handsome, he has a baby face and is often doted on. He holds the tsundere princess position 👸 in the super-popular idol group ONE N' ONLY. Despite being only a high school junior, he is incredibly popular 💖 He is the second son of the Kusakawa siblings.