I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 8 (Manga): Volume 8

With the music fest over and done with, it seems like the slow, laid-back life Azusa's always wanted is just around the corner! Or that was the plan at least...After all, what could possibly go wrong during celestial banquets or vacations with Beelzebub's family?