sentences:  As a Madōgu, forming a pact with his owner to take one day of his life once a month during a new moon, Zaruba's role is to detect Horrors while providing advice and combat strategies.In contrast to some of his owners' more deadpan and silent personalities, Zaruba is very talkative and cheeky, and does not hesitate to make fun of his master as well as those nearby, and would bicker with his master if he feels like it.But like all Madōgu, he is sincere and faithful, sometimes even serious, when it comes to getting the job done.