Haruriri Warura

She is a first class witch who went to the human world in order to make a double contract with Shibaki and to nullify his current contract with Rurumo. She was actually Rurumo's former classmate way back from the magic academy. Though, she may appear to be hostile towards Rurumo, she actually cares for her much, where pretending to be mean was her way of making the latter express her emotion rather than just being stoic and emotionless.