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.

The defeated lady Amnelis returns to her father, where she learns that he has plans to have her married; meanwhile Guin prepares to leave Nospherus, vowing to one day return to the Lagon and Sem. The prince of Crystal returns to his city, only to be betrayed and captured.

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.

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.