@Darketower Blame the fact that the Japanese have a hard time pronouncing the L's and R's (cuz apparently they don't exist in the japanese language). I just pretend they're the same letter when reading manga.
@Sniter it totally makes sense to me, the Japanese doesn't have "L" sound, instead they use "R" sound, so in japanese Als would be written as "アルス" (Arusu) and this could also be seen as "Ars" too in some way, so if the author/artist doesn't write it in romaji or doesn't include any info or fact about the name, it becomes confusing for the TL. (I don't know how it's written in the original manga, I'm just guessing if the name is Als it would be written as "アルス")
I literally read the first chapter on what his version of Reincarnation is . He mentions it as seperating memory from soul. So there might be a possibility that his new body is a puppet? This is my theory
@Joron also mentioned the same thing So maybe his theory might also be right