I wanted to translate this but I have no clue what 悔り難し means. I even asked a Japanese friend and she was clueless.

regretting difficulty? ^_^;;

still I find it odd how a priestess or such dresses like that... not to say I mind (especially with the FEDS art style)

Akari said:
I wanted to translate this but I have no clue what 悔り難し means. I even asked a Japanese friend and she was clueless.

I think it was "difficult repentance/regret." What I'm sure, according to WWWJDIC, is that 難し is the archaic form of 難い.