Grandmaster of Demonic Cultivation: The Patriarch Has a Little Sister

I don't know why the author wanted to write Wei Wuxian's sister. Nothing has changed, and it's not like he doesn't know where the plot is going. Is this any different from watching Chen Qing Ling again?

Sister Wanyin? ! Did I read that correctly? Why did Acheng become a girl?

Like + feel sorry for the heroine + like the plot setting~