Dante is accidentally trapped in Nightwing Supernatural Boarding School, a deadly dark‑web game where rule‑breaking means death. He awakens a succubus system and must win over cold disciplinary minister Selena to survive. Braving dangers at the banquet hall, obsidian classroom and grand chapel, Dante outwits the brutal rules and grows close to Selena. The group finds the school is a living behemoth. Dante and teammates fight to shut it down in its core chamber. As the abyss collapses, he risks his life to save Selena, forges a supreme blood pact and slays the abyss warden. The survivors flee to shadow cliffs, build defenses and a loving home, embracing new life.