Yuuka

Yūka is a character of the day who appeared in Ep 140.
Her father, Nagai, is the owner of a toy store that sells figurines of the town's favorite superhero, Gligarman. Satoshi and his friends later realized Nagai himself was Gligarman, who donned a purple costume to fight crime and—perhaps more importantly—to boost sales in his shop. After he became too old to effectively carry out his duties, Yūka took over the role, under the moniker of Gligirl.