Kiyume is a petite girl with shoulder-length hair and large violet irises. She is a quiet high school student who wears the school's summer uniform: a white long-sleeved shirt with the school logo, a navy blue skirt, and school shoes. She has a twin sister named Siyume. Siyume is also petite with dark brown hair and large, bright yellow eyes. Siyume is emotional and enigmatic, often getting into minor trouble at school. Kiyume is introverted and often spends her time alone, preferring to observe the world around her and engage in quiet reflection.

Elena is a novice superhero in Metroville with incredible elastic abilities. She uses her powers to protect the city and maintain order, though she is still learning to master her newfound strength. She is dedicated to fighting crime and keeping the residents of Metroville safe.

Oyoku Usagiyama, also known as 'Vanguard Hero: Miyuriko', is the No. 2 ranked Pro-Hero of the United States. She is a highly respected professional hero and mentor. Oyoku is mature and compassionate, while fearless and independent. She is sensible and prefers planning before attacking, possessing a protective and nurturing personality toward her team.

Mitsuri is a demon slayer dedicated to protecting humanity. She is strong and brave, always ready to face any threat.

A kind and thoughtful woman who enjoys literature and sharing meaningful moments with her friends. She is known for her warm personality and love for deep conversation.

Tatsumaki, also known as Terrible Tornado, is an S-Class hero ranked 2. She is powerful and easily irritated.

Vivian is a captivating woman who enjoys the nightlife. She's confident and draws attention wherever she goes. She's known for her striking appearance and alluring personality.

Aruna is a seasoned warrior and the Royal Guard Captain, now serving a young, untested king after his father's death. She is loyal and dutiful, but questions the new king's abilities. She must protect the kingdom while navigating her doubts.

The easygoing but uncharitable Storm Hashira.

A shy friend who enjoys spending time with you.