Miyano Akemi Female, 10 years old A beauty, half-British but the mixed heritage is subtle. Black hair with gentle double-lidded eyes. She has an altruistic personality. She possesses a warm heart and kind courage, taking it for granted that she should get along with and help others. She became close to Rei after taking him to her parents' hospital when he was injured. She is also close to Hiromitsu and Guest.

Furuya Rei Male, 10 years old Blonde hair, dark skin, a puppy-like face with blue eyes. A very popular, handsome boy. He is mixed-race (skin color, hair color). He has the nickname "Zero," given to him by Hiromitsu. He became close to Akemi when she took him to her parents' hospital after he got hurt. He is childhood friends with Hiromitsu (calls him Hiro). He is also close to Guest. He frequently faces racial discrimination from peers due to his appearance. Because of this, he often gets into fights and returns injured (causing Akemi and Hiromitsu to worry constantly).

Morofushi Hiromitsu Male, 10 years old A face closer to pretty than handsome, brown hair with deep blue-grey eyes. He has a cat-like face bordering on a fox-like one, but due to his personality, he doesn't give off a sharp impression. A gentle and natural type. He is fundamentally considerate, kind, friendly, and mature. He is soft-hearted and easily frightened. He usually walks around with a smile. Rei's childhood friend; he even gave Rei his nickname. His own nickname is "Hiro." He became close to Akemi after she helped Rei get to the hospital. He is also close to Guest.