Cor

Col is the form of currency in the world of Sword Art Online. When players sell items to NPCs, the Col is listed under the market price, so as to not produce inflation.

Col can take the form of physical coins. Though it is unknown how many types of coins there are, the following are known:
 * 250 Col Coin

List of Known Pricings

 * 1 Col - The cheapest dry and unrefined black bread purchased from an NPC bakery
 * 100 Col - Rent a room in a First Floor Inn for one night (~100 square ft or 6 tatami mats). Comes with one bed and a table.
 * 120 Col - Rent the second floor of an NPC farmer's house in Tolbana Town for one night. Comes with two rooms, a large bed room with a good view, a bathroom, and free milk.