The night before the Opening Festival, Rimuru throws a lavish banquet for all the nobles and royalty visiting Tempest. When the party is in full swing, Empress Elmesia of the Sorcerous Dynasty of Thalion arrives, throwing everyone into chaos.
it was time for our 
Nation's Opening Festival.
كان الوقت قد حان لمهرجان افتتاح دولتنا
Der erste Tag des Staatsgründungsfests.
le jour du festival est arrivé.
il tanto atteso primo giorno di festival!
era hora do Festival
de Abertura da Nação.
настало время открывать сам фестиваль!