A slave knight serving under Glenn, his swordsmanship is almost on the same level as Koinzell. He&#039;s been studying under Ms. Gleaa for 5 years and was told if he killed the Hero Slayer, he&#039;d regain his title as Imperial Royalty. He wants to defeat Koinzell and the &#039;Black Wing&#039; technique in a fair fight, so as to strengthen his own skill.

Rumors stir throughout the land: when the wielder of the black sword draws his dark blade, all who stand in its path are torn asunder…! 
Köinzell, the mysterious young boy who carries the black sword, undeniably wields it with exceptional skill, but can he truly be responsible for the bloody rumors?
Pursued by the Traitorous Lances, four powerful warriors who were thought to have been defeated by the Seven Heroes, the strength of the young swordsman will be tested to its limit. At battle’s end, only the shocking truth of Köinzell’s quest will stand above the corpses of his enemies… 
An epic fantasy on the grandest of scales! 

(Source: Yen Press)

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Set one year after the war with Glenn, Elseria, who is now crowned emperor, tries to stabilize the kingdom, filled with dissidents, and in that is helped by Köinzell, now Lord Viceroy Ascheriit,alongside the imperial general Geranpen, his chief official Ato and Ikfes, the swordsmith, known as Blattmaster. In southern part of the empire, Helenhild, a remote area,a new threat, a resistance force made up of remnant loyalists of Glenn, called "Knights of the Dead King", who believe in his eventual resurrection, have started to act up and sow seeds of unrest.
 
The fates of Köinzell and the Seven Heroes become intertwined again, as the second act of this dark fantasy revenge saga, begins to unfold now............. 
(Source: Square Enix, translated & adapted)