For her one laugh, he was ready to burn the whole world. When she smiles, his whole world smiles. When she scolds him, he listens to her like she is his favorite piece of music. When she looks at him, he wants to stop the time. When she cries, he dies inside. Later, she turned from his childhood madness into someone he cannot stand. From childhood best friends to enemies... But now, enemies to...?? Lovers? Allies? Killers? The biggest rivalry?Or something else? In a world where trust is a weapon, who will take the final shot?