Here are some new screenshots of Q Entertainment's multiplayer online RPG Guardian Hearts Online. The game is free with a pay per item business model. You play as a guardian of one of the three kingdoms, which are governed by the Princess. You can customize weapon, armor and skill of your character, and play online with up to 3 other players in the online co-op mode. There are over 1000 skills you can learn in the game, there are 8 types of weapons available, such as sword, spear and bow.
There is a Mercenary System, which allows you to hire other players' character as mercenaries in offline mode.