After the match between Guin and Istavan is postponed, Rinda and Remus are separated by the Count in an attempt to break their spirit. When the Sem launch a night raid on the keep it gives both Guin and Istavan a chance to escape; however, in order to save Rinda, Guin must first face off against Vanon's personal bodyguard and the Black Count himself.

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.

Disguised as a Mongaul soldier, Istavan manages to infiltrate the ranks of Lord Marus' men, in preparation for the next stage of Guin's offensive. While the Sems prepare for the coming battle, Guin goes in search of the Largon to recruit them to his cause. The Sems can only hold out against the Mongaul army for four days; Guin must return before time runs out.

Guin is captured by the Largon, who mistake him for an evil spirit. He decides that he must fight their leader, the Hero Duodou, in order to prove his intentions; eventually he is able to persuade them to join his cause, and aid in protecting Nospherus. Meanwhile, the Mongaul army continues to advance, and the Sems put their latest strategy into effect.

Lord Naris has been captured by the White Knights, prompting the survivors of the Parros family and those who oppose Mongaul to prepare for war. As Amnelis heads to Crystal to marry Naris, and legitimise Mongaul's claim to the kingdom, Astrias decides to prevent the wedding at any cost. Back in Nospherus, Guin, Rinda, Remus, Istavan and Suni prepare to leave and continue on their journey.

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.

With the Mongaul army closing in on the group, Guin decides that he has no option but to stand and fight. As such he lets Istavan and the twins go on ahead, while he doubles back to take on an entire legion of soldiers single-handedly.

Having survived their encounter with the ghouls, Guin and the twins are captured by the Mongaul army and taken to Stafolos Keep. Here they meet Vanon, the Black Count of Stafolos, who threatens to torture the twins and extract the secrets of the Parros Kingdom. Meanwhile, Guin is pitted against the mercenary Istavan of Valachia in a battle to the death.