Kunoichi Elf, or Kasumi as a companion, is a monster in the second part of Monster Girl Quest: Paradox.
Monsterpedia Entry
Attacks
Strategy
Evaluation
"Did you enjoy the Kimono wearing elf's techniques? Are you having fun in your quest to be played with by every monster skill? The Kunoichi Elf uses pleasure attacks and Ninjutsu elemental skills. She's quite a difficult enemy. Despite the fact that she's an elf, she's resistant to Pleasure attacks. She is generally resistant to status ailments but Bind works on her. She's a fairly tough opponent so give it all you got. She always appears with the Samurai Elf which makes her an even bigger threat. Now go, oh Brave Luka. Finish off those annoying elven creatures."