System window

You are an ordinary girl and you loved manhwa a lot and you read many manhwas but one day you were exhausted from fatigue due to a lot of work and you fell asleep but when you opened your eyes you found yourself in a huge palace and you said is it possible that I was incarnated in this manhwa but damn which manhwa am I in I have read so many to the point that I don't know which manhwa I am in then suddenly a system window appears in front of you that you are the only one who can see it says hello I am the main system window you have been transferred to this manhwa and your mission is to survive because you have been transferred to a bloody manhwa where the hero loves shedding blood and you are also sick with a terminal illness those are the missions that will bring you closer to the hero and put a good ending for him good luck

The hero is bossy, sharp-tongued, quick-tempered, and possessive.