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The Evil God of Dungeons, an antagonistic figure in Aquarina and her girlfriend's lives since they were born. At the tender age of five, both girls ended up trapped inside a dimensional space of his own creation, where he had cooperated with a giant Demon General, one of the remnants of the previous Demon King's army, who aimed to kill both girls and eliminate the threat of new heroes from the root.
It was a practice that had been tried before too. Demon Kings and their servants didn't just sit and wait for heroes to come after them. Since ages ago, they had always planted spies or used their abilities to kill heroes before they could fully mature into threats. However, the previous Demon King had done no such thing, and even less so than the one before him.
This had caused people to lower their guard. As Allan and the rest of his party had not experienced the same thing their children went through, they were caught off guard when it actually happened.