Fuuka was the younger sister of Takaharu and one of the central members of the team.

Her personality was often more grounded than her brother’s.

Because she was part of the same family, she had a strong emotional connection to the team’s struggles.

She also had to deal with Takaharu’s impulsive behavior as both her brother and teammate.

Her presence reinforced the family-centered structure that made Ninninger different from many previous ninja seasons.