Survive as the Villains' Cousin

The culprit who turned her twin cousins into villains by appearing in a side story of a novel! ...Who would have thought she would be reincarnated as a villainess? I sighed deeply and made up my mind. "Let's raise the twins with love and prevent their darkening!" I don't care about the novel and get along well with the twins, but the second male lead, whom I had no reason to get involved with, keeps getting more and more obsessed with me! Ah, where did it go wrong? And why did the second male ...