Playing the male antagonist in a melodramatic novel is fine for a bit of fun.

[No female lead]
Cultivator Chen Zhou is unexpectedly reborn into a world full of melodramatic novels, and his identity is Bai Yueguang, the senior student of the married Emperor Ruyan, whose husband also has stomach cancer.
If the stomach cancer had been detected earlier, Emperor Ruyan could have divorced him directly, avoiding all the regretful scenarios!
As for the identity of the "white moonlight" (ideal love interest), of course, it's not an act!
Childhood sweethearts raise a body double and then help the double become a star?
The stand-in tried to play the scheming woman, but was immediately crushed.
……
As for Chen Zhou, he was just enjoying the fun while cultivating!