In 2006 he started to compete in D1 Street Legal and, improving with each round, got his first win in 2008 putting him second in the standings behind Naoto Suenaga.

In 2009 he competed against Jikuya Kiyofumi, Masashi Yokoi and Seimi Tanaka for the title, and managed to win 3 times in a row.

Continuing to compete in non D1 competitions, he started to use Federal tires and retained his Drift Muscle title.

Despite driving only a slightly modified version of his D1SL car, he beat many D1GP drivers, losing to Masato Kawabata in the end.

He later competed in the drift class at World Time Attack Challenge in Australia,[3] driving an S15 Silvia he prepared for D1GP the following year.

The 2021 season was his best year as he grabbed 4 overall and solo run wins and sealed the championship in the penultimate round.

In early 2022 he began collaborating with the new TMAR team and was to debut a V8 powered S13 built alongside fellow D1 driver Daigo Saito.

The car was fitted with naturally aspirated LSX and was finished mere days before the opening round, but unfortunately the V8 engine was blown during testing and Naoki had to reuse his S15 which shared the same fate as the S13 during practice.

[6] For 2023 season he left TMAR and return as Valino's works driver and will debut a Toyota GR86 which makes it the first time he compete in a non Nissan S-Chassis car.