This Is No Demon Cave for You Witches to Live In

As an adopted son, I was told I had to be absolutely loyal to the young lady of the family.

Who told me that monsters live by eating flesh and drinking blood, delight in harming living things, wreak havoc on the world, and are creatures everyone should destroy?

Why is it that these dangerous monster women don't want to eat my flesh and drink my blood, but instead want to!!??

TIPS: An absolute harem showdown. Multiple heroines competing for the reader's support. Guaranteed no angst. This story starts a little slowly.