This work is a gay novel. The love process of two girls with different identities, different families, and different ages is written from the perspective of dual main lines. There is joy and sadness throughout the work. They act as each other's sun to warm their lives, and act as each other's moon to attract each other.
Concept: A story about two girls who have been in love with each other for a thousand years but have been in love for a long time.