Zacken always thought if he ever got summoned, it would be by a beautiful human princess begging for his heroic powers. Instead, he ends up standing in front of… a pint-sized Demon Queen who can barely reach the summoning altar. Now stuck in a demon empire that’s falling apart—generals dead, c...

In the War between demons and humans as lady knight Sarah defeats demon queen Eliza. Queen Requested the hero to take care of his sons who she adopted when she was attacking a Village. After that Boy name shirou start living with the hero and her family in future that boy faces many challenges