Kazuma Ikeda

As the son of Tsubasa's future stepmother, this indie-rock musician plays in the band Yin & Yang alongside bandmates like Joker and Ushio. Though his edgy, bleached hair and skull accessories initially trigger Tsubasa's distrust, he warmly accepts the new family dynamic to support his mother's happiness. However, a major misunderstanding occurs when he mistakenly identifies Tsubasa as a young child due to her small stature, leading to a massive confrontation despite him actually being slightly younger than her.