The rotation of the crossing makes the two people who were originally on two parallel lines intersect and overlap.
He originally locked his love for her leaving
But she appeared in his life from a different time and space
Four bottles of heart-inducing medicine dropped from the sky
It triggered a fierce battle between the three realms of humans, demons and demons.
He was ordered by his master to find a heart-inducing medicine
She followed his footsteps step by step
when he discovers the final secret
But he also found that he had already fallen in love with her
How should he choose in the end?
And where should she go?