The immortal living in the mountains fell in love with a mortal.
But humans and immortals are different, and human lifespan is not long.
When the mortal was reincarnated, the immortal used his experience to become a prince with his memory.
When the time comes, he looks for an opportunity to marry that person.
Later, the prince married a male doctor from a medical clinic.
Pei Shen x Hao Xi
Purpose: Witness perfect love