Yesterday in Hibetsu (1984)

Ryuichi Nakagomi (Ryo Amagiya), 20 years old. He moved to Tokyo last fall from the small coal mining town of Hibetsu in Hokkaido and is training to become a dancer while working as a waiter at a tap show venue in Akasaka. His father died in a mine accident, and he lives in his hometown with his mother Haruko (Midori Satsuki) and sister Yuko (Keiko Saito), who work in the mine during the day and run a bar at night. One day, Ryuichi decides to audition for a musical. At the venue, he spots his high school crush Yukari Onuma (Eri Ishida), who had gone missing.