"Evil Girl" Shen Weiyang is trapped in the weirdest S-level dungeon of Infinite Stream: repeating the last day of her life. Betrayal follows her everywhere, and the Terminator will always be her cold and powerful enemy "Shadow". After experiencing being pierced by the same sword for the hundredth time, she discovered the only paradox to break the situation - to offer her most sincere confession and repentance to the old enemy who killed her with his own hands. This is a cage made of a cycle of life and death. Love is the only key and the highest price. When the cycle is broken and the truth emerges, whose soul did they pay for?