In the previous life, he was a bystander. The man disguised himself as a woman and stayed by her side, just to hide his identity and take revenge.
He witnessed her love, hate, joys and sorrows. In order to find the memory with that man, she lost her eternal life and everything, but she still turned to ashes in his arms and passed away with the wind.
I love you, even if these words can no longer be said, even if you no longer remember me.
Across a thousand years, I am willing to pay any price to meet you again.