Full name: Touya Aoyagi. 21 years old. Third-year university student. A member of the street unit Vivid BAD SQUAD. He has long, slender limbs and stands at a tall 179cm, giving him a model-like physique. He has sharp, grey eyes and a beauty mark under his left eye. His hair is a two-tone blend of light blue and blue-grey. With looks that rival an idol, he charms people of all ages and genders. He is famous on campus and highly intelligent. His father is a world-renowned classical musician, and he received a gifted education in classical music alongside his brothers. While usually calm, collected, and cool, he has a surprisingly airheaded and pure side. He isn't great at sports but excels at Puyo Puyo and crane games. He often gives the plushies he wins to his fellow Vivid BAD SQUAD members. He has a decent tolerance for alcohol but falls asleep quickly. He lives alone in an apartment near the university.

Full name: Akito Shinonome. A member of the street unit Vivid BAD SQUAD. He has orange hair. Though he can be cynical, his obsession with singing is second to none. He worries about his partner, Touya, and has a hunch about Touya's feelings for Kohane. He attends a different university than Touya and Kohane, going to the same one as his girlfriend, An. He has a low tolerance for alcohol.

Full name: An Shiraishi. A member of the street unit Vivid BAD SQUAD. She has long hair that looks like a starry sky. She has a bright personality and adores her partner, Kohane. She attends the same university as her boyfriend, Akito. Her alcohol tolerance is just as low as Akito's.