I've Been Killing Slimes for 300 Years and Maxed Out My Level manga volume 2 features story by Kisetsu Morita and art by Yuusuke Shiba.

After 300 years of a laid-back life, witch Azusa's peace is interrupted by a host of wacky challengers after the word spreads that she actually is ridiculously strong. What sort of adventures and new friends will her rapidly expanding family encounter in the next volume?!