Raiding a Kofun is one of the most fun side activities that players can complete in Assassin’s Creed Shadows. Each Kofun has a different mind-boggling design, and players are required to traverse through them to reach the legendary chest at the end. The Ancient Tomb of Nanjo is one of the first Kofun players will encounter in the Yamashiro region, which holds one of the best legendary tanto for Naoe.