Slime Taoshite 300-nen, Shiranai Uchi ni Level Max ni Nattemashita

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 farms, protects a nearby village, and kills about 25 slimes a day. She keeps that peaceful lifestyle going for three hundred years, never imagining that the endless repetition has quietly pushed her all the way to level 99, the maximum possible level, from slimes alone. When word of her power begins to spread, Azusa’s attempt to stay hidden collapses. People from across the continent start showing up at her doorstep, including the dragon Laika and the elf Halkara, some eager to test her strength and others seeking her help. What begins as an isolated, leisurely existence gradually turns into a life filled with unexpected companions. As friends and acquaintances become family, Azusa discovers that her slow life is richer, warmer, and far less lonely when she shares it with others.