Survival takes an unexpected turn when a dedicated educator finds himself protecting his innocent students through a catastrophic beast apocalypse. As civilization crumbles and dangerous creatures emerge, the teacher must navigate his new reality—safeguarding those who depend on him while discovering bonds that transcend the classroom. Adventure and romance intertwine as he builds connections with the women who stand beside him in humanity's darkest hour, creating an unconventional family amid chaos and danger. Note: All romantic development involves characters aged 18+. The story emphasizes emotional connections and character growth rather than explicit content.