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

スライム倒して300年、知らないうちにレベルＭＡＸになってました

After working herself to death as an office employee, Azusa is reincarnated as an undying, unaging witch and decides this time she is going to take it easy. She settles on hunting slimes, the safest and easiest monsters around, as her only source of income, and keeps at it for three centuries without ever checking her own stats. When she finally does, the slow grind has quietly made her one of the strongest beings in the world, and her low-key life is about to get a lot less low-key.