A high school boy loves his sister. That love is the fulcrum of the entire story, not a subplot to apologize for. Angels want to kill him because he's the reincarnation of God's enemy, demons want to use him, and the OVA refuses to look away from what he actually feels, making every frame of this three-episode sprint feel like it's about to collapse under its own weight. The manga it's based on is legendary for a reason; this adaptation only hints at why, but those hints are enough to show you what a show willing to treat taboo seriously actually looks like.

Setsuna Mudo is a 16-year-old high school student who tries to keep his head down and avoid the older students who bully him. He is also in love with his younger sister, Sara, whom he sees only once a month, and he is troubled by supernatural powers. As the day of his awakening nears, angels and demons ambush him, each side claiming to know his true destiny. The angels call him the reborn Alexiel, their highest angel, who rose against God. The demons say he led them to war against God. While Setsuna struggles with who he is, the ancient conflict between Heaven and Hell threatens to flare up again. The three-episode OVA mixes action, drama, romance and the supernatural.