The movie isn’t a self-serious reboot or a nostalgic throwback. Instead, it’s an emotionally rich, visually exhilarating film that’s unafraid to ask hard questions about morality, identity, and power.

According to a group of demons, a demon K-Pop idol group was the answer, which viewers would see as the Saja Boys. Led by a demon known as Jinu, he would also be a fitting foil for Rumi, the latter of ...