The Ishibutai Kofun in Assassin’s Creed Shadows is located in Yamato, southeast of the Asuka Rocks Basin. You must use Naoe to access this Kofun, as Yasuke is too large and cannot fit through the main entrance. Overall, the Ishibutai Kofun is not too complicated, but some parts might be disorienting. You’ll need a decent grasp of Naoe’s controls to get through the Kofun in its entirety, and you’ll need to get your timing right on some grappling hook swings. Otherwise, the Kofun itself is relatively straightforward.