I've Been Killing Slimes for 300 Years and Maxed Out My Level

Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita follows Azusa Aizawa, a former corporate slave who dies from severe exhaustion and is granted immortality by a goddess in a peaceful other world. Hoping for nothing more than a quiet life, Azusa settles into a simple routine: she far...