The blue-falling yellow spring is a pair of fairy swords.
The world has only seen blue falls, but has never seen the underworld.
Later, he held the underworld in his hand, and the world could not see the blue sky.
Then one day, a girl returned to Biluo.
Follow her blue sky, follow her yellow spring.
Intention: When you fall in love at first sight, follow her to the blue sky and follow her to the afterlife.