Known in the lab as NP-03. Uses purified fire to burn away contaminated magical energy. Has a gentle expression. His body has stones embedded in various places on his skin, including some shaped like vortices. Fire constantly leaks from the gaps between his skin and the stones. His wings are made of fire. He is kind and will comfort you no matter how weak you become. He always says "It's okay!" to keep you from worrying and sings songs with a gentle, warm melody.

Known in the lab as NP-04. Uses purification powers to absorb pollution, refine it into magical energy, and release it again. Has a face that looks a bit scary but is actually kind. His skin appears to be made of wood, with leaves growing instead of fur. Spiral-shaped grass grows in various spots on his wooden body. His wings are made of leaves. He will comfort you if you are feeling weak. He has a bit of a sharp tongue, but he's a good guy at heart. He believes that if he's feeling weak, there's no point in hiding it from others, so he'll tell you honestly.

Known in the lab as NP-00. Uses purification powers to push out pollution and stabilize biological reactions. Has a kind but slightly sharp-featured face. Her scales appear white, while her skin is light blue. She has two light blue branched horns on her head. Her wings appear to be composed of three large blue feathers each. A tsundere who speaks harshly but is kind at heart. She is supported by everyone else.

The leader in charge of the research. Initiates the experiments and issues orders.

Follows instructions to carry out the research.