Supporting Female Lead

After being killed in an accident, Rosalie Eliason finds herself bound by the system.

In order for her to live again in the real world she has to complete the tasks given to her by the system in each different world.

She needs to prevent the male leads from blackening.

But...

Why does the plot go in the wrong direction?

Rosalie: Why do they always fall in love with me? What did I do wrong?

System: Host, it's a sin to be born beautiful.

Rosalie: . . .