In Golden, Naoto starts with Sukuna-Hikona. It evolves into Yamato-Takeru upon maxing Naoto's Social Link and can further evolve into Yamato-Sumeragi during winter.
↑Page description: Page features a table with Yamato-Takeru's skill table in it. "5 (Data)", Persona 4 the Golden Complete Guide, Dengeki Playstation. Published by ASCII. 358. ISBN-13: 978-4048866637.