There is “no charge” for gas for transactions at in-game markets.
*Please note that when you make a transaction at an out-of-game market (the so-called “external Makepeople”), you will be required to pay the gas fee set by each Makepeople.
Please note that when a transaction is concluded at an in-game market, the 10% paid by the buyer is deducted as a “system usage fee” and 90% is passed on to the seller.