Summer 2023 has two fantasy comedy anime airing and they have an absurd amount in common. Both series are about a Demon Lord and the Hero who beat them and their slice-of-life adventures, occasionally interrupted by a more serious overarching plot. One of these series is the returning hit, The Devil Is a Part-Timer (HataMaou)! The other is a newcomer to the anime world, Level 1 Demon Lord and One Room Hero (Lv1 Maou). Calling these anime similar is an understatement. It's nearly impossible to describe one series without making it sound suspiciously like the other. Someone hearing about these two works secondhand could easily assume that Level 1 Demon Lord was copying a successful anime.
Source：https://www.cbr.com/devil-is-a-part-timer-anime-level-1-demon-lord-comparison/
