Others thought that they were once close friends, but then they parted ways and eventually became irreconcilable rivals. But who knew that they were actually a pair of irreconcilable enemies.
Once they ascended, they thought they would have nothing to do with each other, but unexpectedly they were arranged to be sent down to the mortal world at the same time to survive the same love tribulation.
False love rival
The third party is actually a good friend of the two
Purpose: Who says you can't fall in love with your love rival?