Grim Love

Nagisa is in a world with levels 1-10 monsters and humans live together. It may not always be easy, but for her it's normal. Since shes has lived with this world her whole life. And while it's ok to be friends with level 1-3 monsters you may NOT be friends with any other level. But what happens when Nagisa falls in love with a level 7? Does he love her back? Does he become her master/lover???? Does he give her the lust and desire she wants? read on to see!
WARNING!! SPOILER!! IF YOU ARE OFFENDED BY SMUT THEN STOP AND GO READ SOMETHING ELS!!