Hiyu’s motorsport journey started on the karting circuits at 8 years old, competing in various karting championships. He gained valuable experience in the karting field with one of his highlights finishing 2nd overall in the IAME Series Japan – X30 Junior in 2020. Since joining VAR for the Italian F4 and Euro 4 Championships in 2024, Hiyu has shown his resilience on track, delivering consistently strong performances. He was among one of the top contenders in both championships, claiming a total of 11 podiums, 4 wins, 3 pole positions, and 4 fastest laps.