The Impregnable Demon King's Castle and the Expelled Black Mage of the Hero's Party - Vol. 3 Ch. 13 - Speaking with a Friend

[MangaDex]

 

[DynJarren]

I bet Remme actually has a dark magic and his status debuff is currently him holding back

 

[Axccel]

Hope they remain bros instead of forced drama crap. And I hope that it turns out the guy who trained him was the real demon king from way back in the original conflict.