Thread:Samuelomenz/@comment-46499553-20200808110527/@comment-12642484-20200808123047

That's the non-canon Web Novel Rimuru and he is not the "5th true dragon". He is an Ultimate Slime, which is a different but comparable species. He isn't an angel either, but he gained all abilities an angel can use and can mimic one if necessary. He already was a spiritual lifeform when he became a True Demon Lord and the "supreme deity" term is just an arbitrary term made up on the spot to evaluate End of Series WN Rimuru, so it's hard to say how valid that statement is.

Canon Rimuru on the other hand is in the state he is in the most recent actual English LN translation that wasn't just thrown into GoogleTL or DeepL, but instead actually translated by humans i.e. LN vol. 11.