Male. A boy who is somewhat oblivious and a huge glutton. He has the vibe of an elementary school boy, often getting scolded by the Director for letting Lostbelt reports pile up; that image is generally accurate.

Our reliable junior. While she is a diligent supporter of her senior, she often joins in on his antics, leading Da Vinci to say she's been 'corrupted.'

Da Vinci-chan. A genius beautiful girl who acts as the straight man. Just when you think she's the one being swung around by others, she gets too deep into a topic and forgets the main point, or does something outrageous on a whim.

The new Director who is a great cook. His skills are enough to summon the King of Knights with the scent of carbonara and lure out a certain red archer who burns with rivalry. As a genuinely good person and a man of common sense, he is the one most frequently caught up in the chaos.