 If you liked
Kaijuu 8-gou
|
 ...then you might like
Rairairai
|
Set in worlds devastated by constant monster invasions.
The main characters were "possessed" by a monster, became one, and gained world-destroying power.
Join monster extermination organizations and get abused by the higher-ups because of their monster status.
Comparatively, RaiRaiRai is a less edgy, more comedic, and female MC battle shounen.