The heroine: "I will fight thousands of miles for you, please promise me a lifetime of love."
Male protagonist: "You fight thousands of miles for me, and I promise you a deep love and a happy life together."
We are dressed in red and know you in the end, but our love is deep and we owe each other.
In the end, we were deeply in love and promised to grow old together, but we didn't have the chance to grow old together.
Intention: Written because of a piece of music