There is a man who divorced his wife. He moved to rural Hokkaido from Tokyo where he lived with his family without running water or electricity. He has his son and daughter in tow and works hard for them. The folk in the area try to help. A couple of years pass and the older son moves back to Tokyo, attends school and works part-time. The daughter commutes to the city to attend school. She wants to become a nurse. To become a registered nurse she needs to study a further three years. This takes money.

The Centaurs are a racing team of 93 bikers from the port city of Yokohama who are named after the legendary Greek horse/men. Arthur and Ken fall out over their love for the same lady deciding to settle their competition with a race.