On the continent of Synapus, a 200 year long war has been waged between two factions, those in power, the Injellans, and those trying to break from the system, the Rushierans. Our story follows Hewie, a newcomer fighting for the Injella empire and church. After a training battle with his friend and mentor Ducis, Hewie is called to the High Priests chambers along with several of his fellow comrades and friends. The High Priest tells them that it is time for the war and suffering to end, and for them to end the rebellion and destroy the "evil" Rushierans. His intention is to create a new army composed of seven "Holy Knight Corps" that will be the core of their force and handpicked by him personally. Hewie is given the title of Seventh Holy Knight and two subordinates and Hewie, rather un-enthusiastically, accepts. Shortly after, the Holy Knights Corps are instructed to take back the Rusherian fortress of Borborade, which is key to breaking into Rushieran territory and ending the war.
Castle Fantasia 2 Renewal is a remake/upgraded version of Castle Fantasia 2. In Renewal, most game CG's were redone/redrawn in a higher resolution, 800x600 (The rest scrapped), voice acting for all characters and text was put in, one omake ending was removed, and additional endings were added along with an extended common route for these endings. The original had only voiced h-scenes, 640x480 256 color resolution, and a yaoi omake ending, but it did have more CGs than Renewal.