Late-Stage Cancer, The President's Ex-Girlfriend Madly Avenges Me

My ex-girlfriend loved me deeply, but in the end, I still broke up with her. Because of an illness, I had to break up with her. I thought our lives would never intersect again, but one day, we met again... Was it the coincidence of fate, or the favor of the matchmaker? Was it another mutual hurt? Or was it simply for her to take revenge? I don't know. The only thing I know is that since I only have six months left, I must eliminate all those who pose a threat to my sister! I'm going to die, everyone knows, but what everyone can't understand is why Lin Xiaohua is so fierce even though she is dying?