Offtrade is in-game market system that allows you sell items for WCoins or Jewels after you close your client.
Offtrade works only in Devias.
How do you use /offtrade
1. Open your personal store
2. Put your item to personal store
3. Right click on item
4. Set price (Zen, Jewel of Bless, Jewel of Soul, Jewel of Chaos)
5. Type your store name and Open
6. Type /offtrade in chat
7. Then your character gets disconnect.
Items where you set ZEN will be sale for WCoins