Suika and Yuugi need no introduction, the status of Deva of the mountain is not fully confirmed for Kasen and just what the fuck Konngara is supposed to be?

Konngara is the final boss of hell path in Highly Responsive to Prayers. Has no dialogue and has never appeared since then, but since there seems to be a horn on her forehead it was enough for fans to consider her a Deva (mostly due to lack of other candidates XD).