I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol. 10 (manga) by Kisetsu Morita
On this episode of Killing Slimes, Azusa and friends...go on vacation! Whether it's a dip in the ocean, a visti to Halkara's hometown, or an invite to the demon lord's birthday party, plenty of twists and turns are in store to spice up her slow, laidback life!