User blog comment:Crimson lotus ichinose/Yuu as a Sun God or Demon?!/@comment-36009152-20200208162217

The amalgamation of humans and demons is one thing, and then with vampires AND seraphs, turns out is something characters have the strength and tactics to pull off. Guren showing how that can be done with a thought demon of sorts, Noya, and the spirit of Mahiru with himself where they attempt to balance the corrupting power between them is one example. Sika Madu gives the impression he achieved it differently, if he really was not human, and began as something that could acquire demon/vampire/seraph powers, then he seems to be on his way to matching the power of these demi gods... who may be hostile or amicable with the god that has seraphs at his disposal.

Yu going from a being where the moon seemed to have influence over him, to having the powers of a sun god, whatever those entail, would be interesting!