I've Been Killing Slimes for 300 Years and Maxed Out My Level, Vol.5 - Kisetsu Morita - Bog

I''d been killing slimes for 300 years-and then I had to go into a huge dungeon! I didn''t really want to go at first, but after exploring it, I finally discovered that the exciting life of an adventurer...is probably still not for me. (Maybe a little?) Then there was that visit to Beelzebub''s house and sending my daughters to school-things have gotten so busy I''ve almost forgotten how to take it slow!