Chichi to Musuko no Chika Idol
A high school teacher, struggling to keep up with today's youth and estranged from his only son, receives the news about a terrible accident that left his son in a coma. Wanting to know more about his son's life, he finds out that he's been working as a producer for a new underground idol group who are now left without a guiding hand.
Directors: Hatsuki Yokoo
Writers: Yoshiyuki Mitsumasu
IMDB: tt12064960