Slime Taoshite 300-Nen, Shiranai Uchi ni Level Max ni Natteshimatta #16

Slime Taoshite 300-Nen, Shiranai Uchi ni Level Max ni Natteshimatta began as a light novel series written by Kisetsu Morita and illustrated by Benio, first serialized online before being published in print starting in 2016. The story follows Azusa Aizawa, an office worker who dies from overwork and is reincarnated as an immortal witch in a fantasy world, where her habit of killing slimes for three centuries leads her to accidentally reach the maximum possible level. The work belongs to the 'isekai' genre, specifically subverting tropes by focusing on a peaceful, slice-of-life domestic existence rather than traditional heroics.

Issue 16 of the light novel series serves as a late-stage entry in this long-running franchise. The design and aesthetic throughout the series are defined by Benio's character illustrations, which emphasize a soft, bright, and charming visual style to match the gentle, comedic tone of Morita's writing. The series has enjoyed sustained popularity, eventually expanding into a manga adaptation and an anime series, which helped solidify its place as a recognized entry in the popular contemporary light novel market.