Overlord: The Sacred Kingdom

The sacred kingdom of Robol was located on a peninsula and was surrounded by a massive fortress wall to protect it from attacks by various half-human races. Within this wall was a strategic outpost, which was seen as important and even prestigious by the service members, at least for one girl who intended to become the best knight, just like her late mother and her father, who possessed special vision. A major invasion of monsters begins and a full mobilization of the population may be necessary. The opponents were led by the great demon Yaldabaoth. He intended to turn the kingdom into hell. The demon demonstrates tenth-level magic and causes a meteorite to fall.

Hordes of terrifying creatures poured through the breached wall. The demon cunningly used them. He himself served the master, striving to show even greater loyalty and skills to him. The commanding knights Remedius and the holy queen went out to meet the demon. They lead a squad of angels to protect the kingdom's population. Remedius believes that they need to seek assistance from the king of a neighboring undead-populated state. The ruler himself is ready to fight alongside Robol's soldiers. He is not inferior to Momon in strength. He will personally take part and is confident that his army will not be needed.