Lace

The protagonist of the Sunday morning anime for young girls, "Magical Girl Frill." She gains magical powers through some event and fights against evil. However, at one point in the story, she falls into darkness for some reason. During this time, Frill became a subject of Maika's sadistic training. As mentioned earlier, she is a beloved character for both Mafuyu and Dino, making it their favorite anime (hence, the owner took the aforementioned measures to get Dino to go for a morning walk).