ENDRO!

Demon Lord becomes homeroom teacher to sabotage her future killer.

Naral Island runs on a reliable loop: a Demon Lord rises, a Hero falls them, repeat. The latest cycle nearly wraps when Juulia "Yusha" Charldetto and her party — steady priest Seira, cryptic mage Mei, and hyperactive warrior Fai — corner the Dark Lord for a final showdown. Their desperation gambit, a spell to banish the villain into time's drift, backfires spectacularly. The blast rewinds the whole crew to their academy days, memories of victory wiped clean. They're just four students again, dreaming of heroics they've already achieved. Except the Demon Lord rode the same time wave. Stripped of power and shrunk to child size, she adopts the name Mao and slips into the adventurers' school as a teacher. Her lesson plan: derail Yusha's destiny before it starts. The irony writes itself — the would-be Hero and her nemesis now share a classroom, one chasing a future the other is quietly sabotaging. Mao's deadpan manipulation clashes with Yusha's earnest blundering, while Seira, Mei, and Fai orbit the chaos, slowly piecing together why their "teacher" feels eerily familiar. The show mines comedy from dramatic irony, then pivots to genuine warmth as Mao's repeated interference accidentally mentors the party she meant to break.

A lighthearted fantasy comedy where a hero's party and the demon lord are sent back to their school days, with the demon lord posing as their teacher. Expect cute-girl slice-of-life antics, low-stakes adventure, and goofy humor rather than dark themes or intense action.