Wallace Vert is the Duke of the Usief Empire and father of the protagonist Cyan Vert. He rule over Velias an estate in the western part of the Usief Empire. He who willingly dedicated his entire life to serve his people. He held back the invasion of demonic tribe in frontline with his exceptional magic power and military strategies. For maintaining peace for the entire continent, he consider this as his duty despite no on forcing him to do so. even if the demon kings army were to kill him.