In a medieval style fantasy world Alfheimr succubus princess Astrarotte Ygvar, the first princess of the kingdom of Ygvar has just turned 10. At around this age it becomes neccessary for them to have a male harem, because to stay healthy they need to drink the substance "Sauzfryma" (if you can't guess what it means then you don't deserve to read this). The princess however hates men, and to avoid craeting a harem she asks for a human man to be a member of her harem, because humans live in Midgard and the only route there was supposedly destroyed. In midgard however young father Touhara Naoya was looking for a job to support his 10 year old child when he encountered a strange woman who told his fortune and said she had just the job for him. They meet up later and he is taken to the other world Alfheimr. The woman is the Head Chamberlain of the kingdom and reveals that he is to become a candidate for the princess' harem.
This manga is ecchi and pretty funny at points with a decent story. And it has loli's. That should be enough for most of you out there. All the names and places are based on norse mythology methinks.