The Old Kanazawa Marsh Pillar of Honor is a memorial shrine at Old Kanazawa Marsh in Umugi, Toyotama. Visit it to collect the Breath of Hachiman sword kit, a cosmetic look for Jin's katana and tanto.
Travel to Old Kanazawa Marsh in the Umugi prefecture of Toyotama and look for the stone pillar. This pillar also has a Hidden Altar. Bow at the sign and red dragonflies gather around you.
Interact with the pillar to take the Breath of Hachiman kit, then swap it on in the gear menu. Also at Old Kanazawa Marsh: a Sashimono Banner.
Akashima Bamboo Strike
The Akashima Bamboo Strike is a sword-timing challenge near Fort Ito in Toyotama. Cut through all the bamboo with the right buttons and it counts toward raising your maximum Resolve.
Akashima Haiku
The Akashima Haiku is a poem spot where the river meets the sea, just south of Old Kanazawa Marsh in Toyotama. Sit down, pick three lines and you earn the Headband of Uncertainty.
Akashima Lighthouse
Akashima Lighthouse is one of the 10 lighthouses Jin can relight, at Fort Ito, Toyotama. Lighting the fire gives a minor boost to your Legend.
Amber Assassin
Amber Assassin is a dye for Ronin Attire. It costs 10 flowers at the Toyotama merchants. Like every dye it only changes colours.