One of them is a gentle sister and the other is a energetic younger brother. The red thread of fate ties them together.
She has experienced the hardships of life and possesses the wisdom and calmness bestowed by time; he is full of vitality and enthusiasm, and is full of infinite longing for the future. They are like the intersection of stars and the bright moon, bursting out with brilliant sparks.
In this love, they will face doubts and pressure from the outside world, like an insurmountable mountain. Is their love as strong as a rock and not afraid of wind and rain? I love you, what's wrong with that?
Concept: sister-brother love