Natsuki, usually referred to as Natsu or Nacchan, is a member of a Jpop group Fantastics from Exile Tribe, managed by LDH.

He started dancing in elementary school at a local studio. In middle school, he took a break from dancing to focus on soccer. In high school, he started dancing again by attending LDH's dance school EXPG Nagoya.

His dancing talent led him to join the EXPG trainee team EXILE GENERATIONS as well as participate in EXILE's concerts as a backup dancer before making his debut in Fantastics in 2018.