Report to Steward Ujimasa is a written record from Ghost of Tsushima's Records set, left by locals during the Mongol invasion. You find it at Yarikawa Stronghold in Toyotama, and it counts toward the Avid Reader trophy.
Go to Yarikawa Stronghold in Toyotama and look for the paper or scroll to read. Yarikawa Stronghold is a Mongol-held territory, so expect to fight or sneak past guards before you can search it.
Also at Yarikawa Stronghold: the Yarikawa Bamboo Strike, the record To My Brother and the record Rationing in Yarikawa Stronghold.
Rationing in Yarikawa Stronghold
Rationing in Yarikawa Stronghold is a written record from Ghost of Tsushima's Records set, left by locals during the Mongol invasion. You find it at Yarikawa Stronghold in Toyotama, and it counts toward the Avid Reader trophy.
To My Brother
To My Brother is a written record from Ghost of Tsushima's Records set, left by locals during the Mongol invasion. You find it at Yarikawa Stronghold in Toyotama, and it counts toward the Avid Reader trophy.
Mongol Gutal
Mongol Gutal is one of the 50 Mongol Artifacts, pieces of the invaders' culture and warfare you can study. It sits at just outside Yarikawa Stronghold in Toyotama, and finding 20 artifacts counts toward the Know Your Enemy trophy.
Yarikawa Bamboo Strike
The Yarikawa Bamboo Strike is a sword-timing challenge at Yarikawa Stronghold in Toyotama. Cut through all the bamboo with the right buttons and it counts toward raising your maximum Resolve.