What are you... ow!!Owowowowwww! Let go!!There something for me to do?Dirt?Nails?オー, Hiei!Kongou-oneesama!Good grief...Give me your nails!Hiei?Nail!?
What!?Hiei, I'd like it if you could brew up the dirt from your Onee-sama's nails.
It's an idiom meaning to 'take a lesson from someone wise / follow in the footsteps of'.Brew the dirt from someone's nails.Probable typo 赤 instead of 垢
