Maohritsu Chu-boss Yousei Academia

During the age when humans and demons vied for dominion over the world, the Demon King deployed not only ordinary fiends but also powerful lieutenants—so-called "mid-bosses"—at key strategic positions. Yet time after time, these mid-bosses fell to heroes whose strength only grew with each victory. In response, the demon army found itself compelled to produce ever-stronger mid-bosses to stem the tide. It was then that one demon stepped forward. Armed with remarkable intelligence, she established the very first training academy for mid-bosses in the demon world.