In the last round of the college entrance examination, a bizarre warning broke the calm. Only "I" wearing the mysterious warning ring chose to believe it and pulled his brother to evacuate the examination room quickly. Relying on the ring's early warning ability and spatial abilities, we urgently prepared supplies before the city's order collapsed and hid in the hotel to survive. Facing unknown dangers, tests of human nature, and past entanglements, the siblings supported each other and held on to hope in desperate situations. They avoided crises along the way and searched for their mother. Finally, they arrived at the survivor base under military escort and regained the glimmer of life atop the ruins.
