Level 1 Demon Lord and One Room Hero manga volume 7 features story and art by Toufu.

The Demon Lord's resurrection celebrations are in full swing! Things are just getting syrupy between the wicked ruler and the hero Max when suddenly Astaroth, the Demon Lord's most loyal and obsessive servant, storms onto the scene. No holds are barred when Max and Astaroth clash in an intense blood-pumping duel! Will the dumpy little apartment ever be the same?!