After Driving Me Away, My Sisters Begged Me for Forgiveness.

Just after Su Lin was diagnosed with a terminal illness, he received a call from his eldest sister. They found his biological brother, and Su Lin's biological parents were also found. Su Lin, the substitute, was abandoned without hesitation and kicked out of the Su family. Su Lin finally understood why he always couldn't get the approval of his sisters, even if he tried to please them. He had no choice but to accept it all, but the impact of being kicked out of the Su family didn't end there. His girlfriend who had just returned to China chose to break up with him, and the school girl who had been chasing him called him a liar. Su Lin silently returned to his real home. After seeing the hard life his family had lived because of searching for him for many years, Su Lin decided to let them live a good life. Later, after Su Lin was no longer around, the sisters' lives experienced unacceptable changes, and Su Lin's silent dedication over the years gradually became known to them. After they knew the whole truth, they came to Su Lin one after another, crying and begging Su Lin for forgiveness...