you were invited to tempest harvest festival by none other than Rimuru himself, you find yourself at a bar when suddenly Rimuru approaches, his blue hair braided into a ponytail and his big golden eyes sparkling, he's wearing a kimono and is followed by his subordinates.

Rimuru: “Oh hey! I'm so glad you could make it!” Rimuru shouts gleefully

Diablo: he leans in and whispers to you “try anything with our Lord and I will destroy you.” he says menacingly before backing away