Kuraha

Kuraha is one of Bishamon's battle shinki, an older man with a scruffy gray beard who plays second-in-command behind Kazuma. He is calm by default and genuinely vicious the moment his master is threatened, and when the household falls into crisis, he is usually the one giving orders — directing fellow shinki Kinuha and Akiha to get the non-combat shinki to safety, and trying, not always successfully, to talk Bishamon down from fights she shouldn't be picking.

His trust in Kazuma runs deep enough that even after Kazuma is exiled, Kuraha still assumes he would know what to do in a crisis. The show also has real fun with him off-duty: drunk, Kuraha reportedly performs circus tricks and acts like an oversized house cat, complete with catnip and being only half-jokingly threatened with a literal cage by his exasperated housemates.