Remember to add the copyright tag after identifying the source. It helps in case someone is searching for it, and particularly if other images from the same game are identified or added.
Would this then be a very early work of his? 'Cause the eyes here are rather distinctive and they don't match what I've found after googling your key words.
I'll remember about the copyright tag in the future. I wasn't sure if it was okay to make a tag that might never be used again.
And yeah, it's definitely from Mugen Kairou. It's from 2005, not sure if that's "very early". I think the only other Black Cyc game that artist did was MinDeaD BlooD.