Prologue

Rimuru was able to find the walls that separate Realities and the outer Void.

Different realities, Universe and more.

Anos:
"Interesting, ahahaha i didn't expect someone matching me and another Demon king no less"

Azusa:
"(Gulp) i-i didn't mean to ki-kill your kin, I didn't even know slimes had egos before i met my daughter's"

Shiro:
"I see, so... Do you want meat?, we can be friends"

Marika:
"This is the captain Marika, may we know who you are? That ship is interesting"

Kazuma:
"Is that really a ship?!"

Tanya:
"Ridiculous, is this your schemes?! Being X"