The manga is ongoing. As of mid-2024, it is well past Chapter 100, deep into the "Azuma Banquet" or subsequent arcs involving the Thunder Devil.
: The series recently returned from a hiatus following health issues for the author in mid-2025. Official Sources : mato seihei no slave raw manga upd
– Shueisha’s Manga Plus and Viz’s Shonen Jump app offer official English translations, but they lag by a few days to a week. Raw updates are typically 4–7 days ahead, which matters to spoiler-sensitive fans but not casual readers. The manga is ongoing