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The Testament of Sister New Devil BURST

When a reluctant heir to a legendary demon‑slaying lineage discovers that two powerful demon girls have bound him with a binding contract, his life flips from hunter to protector. The young man must now juggle the chaotic demands of his new companions—a mischievous succubus and a fierce demoness—while navigating a world where supernatural politics and everyday school life collide.

The series blends high‑octane battles with risqué humor, weaving romantic tension into a fantasy backdrop that teeters between danger and comedy. Its charm lies in the uneasy yet heartfelt bond that develops between master and servants, offering a fresh spin on the classic master‑apprentice trope.