the ego of the sword, he looks like one of those in the anime 'that time i got reincarnated as slime' and its the red haired ogre named benimaru. Well they just look similar i guess but not really
Spoiler!
Add me on insta eli._.4279
Comment by Ellianne on Absolute Necromancer - Chapter 17
4 Replies
@Ellianne me too 
@Big bee sorry bro, my hand was sweaty cuz of the phones heat and i accidentally press the wrong button, really im sorry!
@Ellianne naa it's o
@Ellianne After Rimuru becomes a demon lord he evolves into a higher type - if I remember correctly a divine oni or ogre. It's just not said in the anime, and comes a few chapters after the meeting with the lords in the manga.