Karl Aretoze

"“I pity you, Eric. Your naivety will drag this kingdom to ruin with yourself.” —Karl" Karl Aretoze (カール・アレトゼー) was the Marquis of the Kingdom of Aretoze, the younger brother of the King Gregor and the uncle of the heir Eric Aretoze, who he attempted to assassinate but failed.

Background
Being the younger brother of Gregor, Karl was a very influential political figure in the Aretoze Kingdom and was the lead minister of the government, holding the title of Marquis and the duty to maintain the stability of the kingdom's domestic affairs. He had a strong connection with the religious leaders of the kingdom, and part of a secret opposition group that did not agree with Eric's methods of training his army in the arts of dark magic and recruiting demons and beasts in their ranks (which first started when they were inspired by agents and warlocks sent by Romanov, a monarch from the Underworld) and feared it would only bring the kingdom to ruination. However, when Eric asked his father for a plan to make Lotte, who was captured at the time, a slave maid, Karl saw an opportunity to take Eric out and take his place as the next in line to rule the kingdom.