I Transmigrated into a Villainess's Junior Sister

Du Sang Sang transmigrates into a cultivation novel and becomes the useless junior sister in her sect, the one who's no good at anything except eating.

She figures she'd be fine just lazing around, but somehow keeps running into the villainous demon lord, who's lurking in the sect and wallowing in sorrow.

Villain: One day, I'll bring the sect to ruin and lay waste to all living things.

Du Sang Sang: Thanks, that made me laugh.

Villain: The world has betrayed me, so I'll destroy it.

Du Sang Sang: If you don't have the protagonist's fate, you'd better not catch the protagonist's disease.

Later, the villain is exposed and prepares to leave the sect for secluded cultivation. Du Sang Sang waves her sleeve and pretends to cry: "Senior Brother, I wish I could leave with you!"

So the very next day, the villain returns, blows up the sect, and takes the most useless junior sister along with him.

Added on 2020.3.7

Theme: The junior sister helps the villain let go of his past obsessions