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

A lighthearted fantasy comedy from Square Enix, this series follows a former office worker who, after dying from overwork, is reincarnated as an immortal witch in another world. She spends three centuries peacefully slaying slimes, only to discover she has inadvertently reached the maximum level, drawing the attention of powerful beings and a chaotic new life. Known for its cozy, slice-of-life tone and charming art, the series has run for 17 issues since 2018, offering a gentle take on the isekai genre.