Jiro Kanzaki is an F3000 test driver blessed with acute sensitivity and breathtaking driving techniques. He's a daredevil who feels no fear driving at speeds that even top racers dare not attempt. But unexpected trouble forces this world-famous racer to leave his team and return to Japan for the first time in years. Until he finds a new job as a racer, Jiro decides to stay with his parents. What awaits Jiro there is his hardheaded father, his nagging sister, the 12 children of the foster home his father runs, a snobbish male nurse, and a stubborn female nurse who likes to daydream about her life. Jiro's return home brings a breath of fresh air that influences the people around him. However, he is still unaware that he too will eventually be influenced to change the way he thinks and lives.