This is the fifth volume of the I'm Quitting Heroing: Next Gig Is at the Demon Queen's Castle manga adaptation.
Synopsis[]
Let's fulfill our promise of 3,000 years ago, brother. The runaway Wyvern suddenly begins to attack the human town. At the cause of the case was DH-06 Virgo, one of the Twelve Demonheart Series, the brother of Leo Demonheart. Leo decides to face up to stop his brother.