I don't know about Eimi being Mugi, though the singing voices are similar that trailer voice/accent is far too different. I also can't find any evidence that she has any artistic ability either, all her art appears commissions/fan made. Worst of all she identifies as 'non-binary' and rides the pronoun wagon. Her Twitter is full of roommate posting and she even sometimes appears to forgo using her avatar and fleshstreams as well. Extremely Twitch generic, doesn't give off any PC vibes to me at all and you'd think if she was in someone would have told her to clean all that up.