It's day one of the festival, and Rimuru finally gets to see all of his friends' performances and presentations. As he's enojying the festivities, he's summoned by Luminus...
but I should've at least asked 
what they'd be presenting, huh?
لكن كان ينبغي على الأقلّ
أن أسأل ما الّذي سيُقدّمانه