Responses
Yup, the black ball(yuu) soul is in Mika's body and Mika's soul (first's son) is in yuu's body
So basically yuu and Mika swapped souls. So Mika is yuu and yuu is the first’s son ( Mika) by soul, not body.
okay so if yuu is angel mikaela, is yuu the first's son and not the mika that we know now? this entire plot has me tweaked