When They Bully Me, I Summon Mom

Yang Zhiwen spent two and a half years hustling between Earth and a fantasy realm, wheeling and dealing his way from nobody to minor lord with 400 square kilometers to call his own. Just when he's ready to kick back with his beast-eared companions, a demon invasion crashes the party—and his cozy fiefdom becomes ground zero. Exempt from military service but stuck on the front lines, Yang faces an impossible choice: lose everything he schemed for, or pull out his trump card. Time to summon the ultimate power that no demon army can withstand... Mom.