1998年11月20日是城堡幻想曲的第二部「キャッスルファンタジア～聖魔大戦～」的上市，本作其實所用的系統和第一部沒有什麼區別，但是相對說來有更多的CG和更龐大感人的內容，所以銷售量更是增高。到了1999年台灣信必優成立初始，第一個決定於漢化的遊戲即是此作。可惜本著智冠的傳統，是不製作成人遊戲的，所以漢化後的遊戲除掉了18禁部分的內容，而且有的地方還由山本老師重新繪製了CG。 因裘拉教國明定社會要尊崇光明神，並以嚴密的世襲制統治著國家；極度的專制最後導致意圖從中解放的叛亂。時至神聖曆158年，自紛爭爆發以來已經過了200年。當時小小的地方叛亂團體，終至演變成強大勢力的反叛軍，最後組成了魯榭拉共和國，並為了由教國中獨立而持續爭戰。 另一方面，因裘拉教國視魯榭拉共和國為異教徒的國家，稱之為「邪神軍」，並認為既然本身是接受光明神恩惠的國度，以「光明神軍」身分捍衛光明神的威信，亦是在所不辭。所以，這場被後世稱為「聖魔大戰」的戰役，事實上是人類之間因各懷對立思想而戰的鬥爭。主角修伊，是因裘拉教國七個聖騎士隊的隊長之一。平時因為過於懶散而風評不佳的他，卻是終結這場漫長戰爭的英雄之一。整個故事，便是以他為中心進行的。

The year 1221 of the Holy Calendar was a turning point for the Vandal Kingdom which ruled the continent of Sahul. The young king James the Fifth initially followed the lead of the previous ruler and was tolerant to the minorities, but turned to a hard-line stance after being influenced by his advisors. He forbade them from being involved in political affairs and betrayers would have their entire home village sent to settlements regardless of age and gender. The enforcement of this Fleming Rule drove those who wished for their own sovereignty underground. Seven years later in the remote town of Rahy, the captain of the guards Kenneth received news that some rebels had escaped from the suppression of a revolt in a neighbouring province and were heading his way. He gathered his troops in response to their request, but since he had also maintained good relationships with the minorities in neighbouring villages, it was impossible for him to resolve this problem quickly. It was to be the opening act in a long battle which laid before him. [From [url=http://omochikaeri.wordpress.com/2013/12/01/december-2013-eroge-releases/]Hau~ Omochikaeri![/url]]