The roses are the secondary currency of the Werewolf Online game. You can buy them from your inventory and give them away to other people. An individual rose costs 25 gold and a bouquet 250 gold. If you send a bouquet everyone in the game will receive one rose, even yourself. Some of the game's special items can be only bought with roses that you receive from others or from the bouquets you send.
Roses can be used to buy additional avatar slots, accessories, clothes, and additional roles for Custom Games.
Certain rules exist with roses such as rose bribery, rose scam and rose code. They can be found in the main menu of the game by pressing the blue question mark in the lower-right side of the screen.