Countdown to Confession in Three Days

Su Cheng has been living with me since he was 14 years old. I always thought he was a cute and beautiful little puppy who hung around me all day long. Unexpectedly, this puppy soon grew into a wolf. As his 19th birthday approached, he threatened me: "The progress of my relationship with my sister depends on my sister's attitude towards other men." He pressed forward step by step, and I panicked and didn't choose the right path... (The male and female protagonists are not related by blood and have different household registrations) Purpose: Work hard to live the way you want