Why Did Things Turn Out This Way After My Sister Adopted Me?

At nineteen, Xue Er fled the place she called "home." Her unusual bloodline came with supernatural abilities, and if anyone discovered them, it could attract a secret organization that would capture and study her. She had no choice but to begin a life on the run and in hiding. She met twenty-year-old Xin Yao, came to know her, and was taken in by her. Xue Er thought they would grow old together.

Until one day, Xin Yao discovered the secret of Xue Er's unusual bloodline and gradually learned about the hidden truths of this world...

Before long, their peaceful life was shattered, and everything changed.