The Sakimori Overlook Pillar of Honor is a memorial shrine at Sakimori Overlook in Azamo, Izuhara. Visit it to collect the Mamushi Venom sword kit, a cosmetic look for Jin's katana and tanto.
Travel to Sakimori Overlook in the Azamo prefecture of Izuhara and look for the stone pillar.
Interact with the pillar to take the Mamushi Venom kit, then swap it on in the gear menu. Also at Sakimori Overlook: a Sashimono Banner.
Aaruul
Aaruul is one of the 50 Mongol Artifacts, pieces of the invaders' culture and warfare you can study. It sits at a camp south of Izuhara Clearing in Izuhara, and finding 20 artifacts counts toward the Know Your Enemy trophy.
Adachi Dragon Mask
Adachi Dragon Mask is a New Game+ mask sold by Baku the Voiceless for 5 Ghost flowers. It does not exist in a first playthrough.
Adak Tree
Adak Tree is one of the 50 Mongol Artifacts, pieces of the invaders' culture and warfare you can study. It sits at Yoichi's Crossroads in Izuhara, and finding 20 artifacts counts toward the Know Your Enemy trophy.
Adventurer's Fortune
Adventurer's Fortune is a dye for Traveler's Attire. It costs 10 flowers at the Izuhara merchants. Like every dye it only changes colours.