In this ruined world… I plan to survive ‘together’ with him. Eun-soo learns through a ‘visionary dream’ that the ‘Day of Darkness,’ when monsters attack the Earth, is coming. He realizes that he has awakened his abilities and begins preparing to survive in the coming future. In order to survive, he clings to Jaeyoung, the hidden strongman he saw in his dream, and begins to be nice to him. As he gets closer to Jaeyoung, he realizes that he has a crush on him. Eun-soo’s mind was confused for a moment, but then the red moon rose and the day came… One by one, people awaken special abilities, countless monsters, the existence of gods, destruction, and salvation. Can Eun-soo and Jaeyoung survive to the end in a dizzying world filled with intrigue and betrayal?