Hyougetsu 
Der Werwolf: The Annals of Veight Volume 2 [EPUB ebook] 

With the alliance between the demon army and Ryunheit complete, Veight’s dream of inter-species coexistence has come to fruition, with the city prospering like never before. At the same time, ominous rumors of a “hero” with strength rivaling the Demon Lord himself start circulating in the north, where the second regiment is on the losing end of a prolonged battle. Veight rushes with his master to confront this famed hero at the fortress city of Schverm, but he finds the Demon Lord has beaten him to the punch. Who will emerge victorious in this battle between the two strongest people in existence?!