Sin the fox has been guiding Percival and his friends since the beginning of their adventure. But when the Four Dark Talismans nearly annihilated the party, Sin revealed his true form—the human Lancelot—and defeated the enemies with ease. Now, the mysteriously powerful Lancelot leads them onward, and the group finally reaches the Kingdom of Liones. Determined to learn the truth about The Four Knights of the Apocalypse and the reason behind his grandfather's murder, Percival seeks an audience with the legendary king. But he might not be what they were expecting...!