Kiseki: Anohi no sobito (2017) online

Against the protestation of his strict father, Jin leaves home to pursue his dream of becoming a musician. Meanwhile, his little brother Hide accepts his father's wishes and aims to become a dentist. But none of them can escape the attraction of music. When Jin's music career hits a snag, he discovers that it is his brother, Hide, and his fellow dental students who exhibit a great natural talent for music, and he pins his hopes on them. But Hide wants to become a dentist...and still sing while fear of his draconian father looms large. So they strike out on a bold plan? To make their CD debut without ever showing their faces to the public