This is a discussion blog, state ideas for what would be cool possible candidates for Issei to Recruit into his peerage be they a European Monster like a Lumia, Harpy, etc or a Youkai like Nekomatas, Kitsunes, etc or other Demi-Goddesses like Valkeries, Shimigami's, etc
I for one thought about a female European Dragon outside of Tiamat, maybe Tiamat's Daughter or Sister to Bova, on top of liking the Idea of the European Monster known as a Succubus, State ideas that you think might look good as Issei's future Peerage Members.
-European Dragons (Gaint Lizards that have wings and breath Fire)
-Succubus (a Sexy Dream Demon that sucks out the essence of men, draining their Vitality)
-Lilim (a Sexy Demon who is descended from Lilith who is able to Seduce both Men and Women, draining them of Vitality)
-Siren (earilier versions appear very much like Harpies and have bewitching songs that can lead men to their deaths, the later versions take the Appearance of Mermaids
-Nymph (are Spirit of elements varying in types from the Dryad tree Spirits to Naiads Fresh Water Spirits and Nerieds Ocean Spirits, they can comes in many shapes and sizes and on occasion can be confused with Fairies)
-Fairy (are a sprite creature that is usually female often confused with Nymphs, they are usually very small and are tricky by nature, but some are even human size, they have penchant for playing pranks, that are usually harmless)
-Pixie (Similar to fairies except they are more malicious, they sometimes pretend to be Fairies only to play a prank which usually resolves in killing the unexpected traveler)