In Dokkodo, you generally sell loot at the appraisal building in Kyoto ; one guide says to bring full inventory loot there and speak to the person inside to sell each item.

Where to sell

  • Kyoto appraisal building : this is the main place mentioned for selling Ronin loot.
  • Castle rewards NPC : for bounty rewards , you turn those in at the castle behind the second village, not as regular item selling.
  • Different island/port method : an older discussion says selling prices can vary by island, and mentions a port on a second/secret map as a strong selling spot.

What to expect

  • The appraisal NPC lets you open your inventory and sell items individually.
  • Item value can depend on rarity, with higher-rarity loot selling for more.
  • If you were asking about Roblox item resale in general, that is a different system: Premium accounts can resell eligible Limited or Limited U items from the item page.

Best answer

For Dokkodo Roblox , the safest direct answer is: go to the appraisal building in Kyoto and sell your loot there.

If you want, I can also give you a quick route from spawn to the appraisal building.