Fuujin's Secret is a Sword Kit that reskins Jin's katana and tanto. You collect it from the Pillar of Honor on the shore of Kaneda Inlet in Izuhara, and it is purely cosmetic.
Head on the shore of Kaneda Inlet in Hiyoshi, Izuhara.
The name points to Fuujin, the Shinto wind god. The storms said to have wrecked the Mongol fleet in 1281 were called kamikaze, a divine wind, after him.
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.