it's a transmigration novel (that might have been turned into a manhwa) where the female lead was experimented on which gave her spider powers and she fled the lab when the male lead broke it down. She ended up living right next to the original novel's female lead and her little sister. The male lead, who is the villain of the original novel, end up at her neighbour's doorstep and since that signifys the start of the original novel and hell for said neighbour (who she's lowkey friends with), she drags the male lead to her house, nurses him and has to hide the fact she has spider powers. She works at a coffee shop (idk how i remember this). There are other experiments who all love her but she's lowkey emotionless, 2 are bird related, one of them is fox/cat like and eats liver. The cat becomes friends with the neighbour's little sister. There's a plotline about heretics or something
I'm surprised at how much i remember since i read it around 2-3 years ago. I swear if i accidentally just blended different novels into one frankenovel I will cry
https://www.mangago.me/read-manga/you_ve_come_to_the_wrong_house_villain/
sadly its been over 2 years since the latest update
It can't be a manhwa without the stepsister wanting the fl's man