An "accident" caused the two to be entangled for the rest of their lives.
Her thoughts are like a night that blooms quietly
He picked it gently and crushed it heavily into the dust.
From then on, he approached step by step with only hatred and revenge.
She once loved him dearly, but her heart was completely burned by his revengeful karma.
Now she can no longer love him, and the knife she stabs at him again and again shows her irreversible fate.