Raised by the Demon Kings! 3

Demon King Death Mask is raising a 3-year-old human child, Maris. And he's realized that Maris kind of can't do anywhere near as much as other kids. What can a dad do for his son in a situation like that? There may be plenty of demon kings in the world, but none throw themselves into parenting like this one! Here's the third volume of this child-rearing gag manga, a gift to lift the spirits of all the men out there who are striving to be great dads!