Black School Rules (Burakku kôsoku) theatrical trailer - Shintarô Sugawara-directed movie

Synopsis for Shintarô Sugawara's Black School Rules (Burakku kôsoku) from NTV International Sales (Nippon Television Network Corporation / Nippon Terebi Hôsômô K.K.): "Sora, a high school student with a ho-hum existence, and Chuya are best friends. Their high school has many unreasonable 'black rules' that the students are forced to obey. One morning, Sora falls in love with a girl with beautiful hair. Her name is Mao. Mao is instructed to dye her beautiful, naturally-brown hair black but refuses to do so. She stops coming to school and is about to get expelled. Sora and Chuya make up their minds to 'crush the black school rules'! For the girl he adores and to put the sparkle back in the lives of 500 classmates, two boys who are helpless on their own get together to fight the 'black rules' and adults! What will happen to their crush and the friendship? And the outcome to the 'black rules'?"