Arao started karting in 2012.[3] In 2021 he became OK vice-champion in the All Japan Kart Championship.[4]
Formula 4
Arao made his single-seater debut in 2022, competing in the French F4 Championship.[5][6] He started his season in strong fashion, getting a podium in the season opener at Nogaro and finishing fifth in Race 3.[7] More success came at the following round in Pau, where, having taken pole position and finished second in the first race, Arao achieved his first victory in car racing on Sunday, beating out championship leader Hugh Barter.[8] The next four rounds yielded a podium each, with a highest result of second at Spa-Francorchamps, before he won Race 1 at the season finale in Le Castellet.[9][10][11] He ended up third in the standings, four places ahead of fellow Red Bull Junior Yuto Nomura.[12]