makai wo tsuihou sareta mazoku no oujo desu ga nazeka yuusha ni dekiai sareteimasu!
魔界を追放された魔族の王女ですが、なぜか勇者に溺愛されています!
A light novel written by Hidamari (ひだまり) with illustrations by Nekozuki Yuki and published by Mithril Bunko (ミスリル文庫).
The title translates as "I'm an exiled demon princess from the demon realms, but the hero is for some reason infatuated by me!".