Mahou Shoujo Ore

This story is about a 15-year-old girl who is a newbie idol in love with her best friend's brother who is also a popular idol. But she runs into a scary yakuza guy and finds out that her mother was an ex-magical girl, and the yakuza was her mascot. Her love interest gets kidnapped by demons that look like burly men with cute squirrel heads. So she...