In my previous life, I personally sent my boyfriend aboard the ferry that later sank, separating us forever between life and death.
Given another chance, I returned to the day before he was supposed to leave. After doing everything I could to stop him, I finally kept him from boarding and helped him avoid the disaster.
I thought we could spend the rest of our lives together, but in the end, he still perished at sea.
I sobbed until I could barely speak, but he told me, "I'm leaving. Forget me."
It turned out that everything had been nothing more than a long dream, and he had died in that accident long ago.