This limited time event begins now.

From now until September 5, fans of Octopath Traveler will get to summon fan-favorite characters into Final Fantasy Brave Exvius. Summon characters like Primrose, Olberic, Therion, and Tressa, as you tackle a limited-time raid and earn special rewards.

Players will be able to take on Gaston and Brigands in an effort to earn some raid coins. These coins can be exchanged for "exceptional rewards." There is also a Trial Boss, Blotted Viper, that players can fight in an effort to earn "additional rewards." I guess the Trial Boss isn't worthy of dishing out exceptional rewards.

Final Fantasy Brave Exvius continues to be a free-to-download game with optional in-app purchases. It's out for iOS, Android, and also on the Amazon App Store. Octopath Traveller is out now on PC via Steam for $59.99 (USD).