We already knew that Code of Princess would include local play. Now a listing a 7net (that's 7-Eleven's e-Commerce site) reveals that the game will also have true online play as well.
According to the listing, the game's multiplayer play options include cooperative quests as well as a four play battle mode. All of this is in addition to the game's single player options which include a scenario mode and a free quest mode which will see additional quests post release.
Code of Princess is due for release on April 19