Obaa-chan wa Idol

Yamada Momoka is your average 16-year-old girl. Her family consists of herself, her dad who works at a TV station, and her mom. Apparently, she also has a strict prune of a grandma, but who doesn't? Except that the grandma, Yamada Tamaki, had an accident at the TV station where she got electrocuted and now looks like a 16-year-old Yamato Nadeshiko...