There are many merchants in Sekiro: Shadows Die Twice. These NPCs will buy from you useless items or sell various consumables like Pellets or Antidotes. Below you can check the location of Pot Noble Harunaga and what you can buy from this merchant.
Where can I find Pot Noble Harunaga?
You can find Pot Noble Harunaga soon after you enter Hirana Estate area. Jump down the rocks and then go right - swim towards the small islands. Harunaga is inside the barrel standing on the rocks.
This merchant accepts only Treasure Carp Scales. You can get them by killing pink Carps found in various water bodies. Sometimes, these Carp Scales can also be found as loot.
What can you buy from Pot Noble Harunaga?
Harunaga only sells special items - that is why Treasure Carp Scales are hard to find.
Price (Treasure Carp Scales)
Heals you completely and removes negative status effects.
Reduces Burn buildup (cannot heal the Burn status abnormality). Can be used 5 times.
Mask Fragment: Right
A mask fragment.
Floating Passage Text
This text unlocks a new combat art.