When the Royal twins Remus and Rinda are forced to flee by the invading Mongaul army, they are saved by a mysterious leopard-headed warrior. His name is Guin, but he has no memory prior to meeting the twins. As night falls, the group are attacked by ghouls and must once again fight for their lives.

The battle between the Sems and the Mongaul army has finally begun. Although at first the Mongaul's numerical superiority seems an insurmountable obstacle, Guin's decisive strategies allow the Sems to even the odds.

Naris accompanied by Istvan leads his men to Yuno where he will join forces with Lord Skarl, and prepare for the final invasion of Mongaul. The revelation that Rinda might actually want to be with Naris causes Istavan to reconsider his objectives and he takes off alone. Meanwhile, after defeating the last of the Kitai assassins, Guin learns that Sid is waiting in Torus and may know something about his past.

Rinda and Remus have finally returned to Parros and preparations for Remus' coronation ceremony are well under way. On the day itself, Rinda has a terrifying vision about her brother's dark future. Meanwhile, Guin is making his way north in search of answers about his past, when he meets his old friend Istavan. He wishes to use Guin's power to become King; Unfortunately Guin refuses, and the duo part not as friends but as fated enemies.