転生したらスライムだった件~魔物の国の歩き方~ [Tensei Shitara Suraimu Datta Ken: Mamono no Arukikata]

A spin-off manga from the That Time I Got Reincarnated as a Slime universe, this 8-issue series from Micro Magazine (2017–2021) focuses on exploring the daily life and customs of the monster nation, offering a lighter, travel-guide-style perspective on the world. Illustrated primarily by 岡霧硝, it expands the setting with a more slice-of-life tone, making it a charming companion for fans who want to see more of the kingdom's culture and inhabitants.