Hmm, judging by the second picture with the six Oni, and Rimuru, the name "Rimuru" is meant to be read as "Rimuru" and not "Rimel" or "Rimul"..... would this be a correct interpretation?
Yes, on the light novel. Rimuru's name is read as Rimuru.
I believe Rimuru would be the Japanese way to pronounce a name like Rimel, right? Rimel, Rimelu, Rimeru, Rimuru. Or something like that :p.
this is good pictures, thank you very much