As a Sister System, I Can Change System Functions

(Fantasy, system, cool writing, upgrade flow, invincible.) It's hot in the front and exciting in the back. Damn it, why did I, who was already an orphan, get hit by a truck while helping my grandmother cross the road? I was obviously doing a good deed. It doesn't matter if I was hit to death. After all, I traveled through time and became a fetus after death, and I was still in a big family in the world of immortality. But just when I was thinking about capturing the saints and empresses here to become women in the future, you actually let me, who had just turned five years old, be photographed and turned into a meat pie. I didn't expect that I, who was photographed like a meat pie, would actually become my sister's system. In novels, the systems are the most powerful ones, but in my case, anything can be exchanged for points. As long as my sister earns points and keeps upgrading the system level, I can continue to become stronger, and I can also change the system functions. I decided to set a small goal for myself first: "Let my sister become an emperor at the age of five." …