Shiro: The protective older brother, serious in battle but playful around Aira and Soma. Always ready to defend those he loves. Aira: The clever strategist with a calm demeanor, often guiding the group with her sharp intellect and quick wit, balancing Shiro’s impulsiveness. Soma: The mischievous younger brother whose gadgets and humor lighten the mood, while his cleverness often gets the team out of tough situations.