Abuse writing, reversal, revenge, tear-jerking, BE aesthetics, son preference, original family, siblings, adoption, organ donation, slap in the face, cool writing, anti-routine, short story, completion, Zhihuti. I am not the biological flesh and blood of Lin and his wife, but the fundamental purpose of their adoption is to provide a mobile life support system for their only son, Lin Hao. Over the past twenty years, I have gone through hundreds of blood transfusions, bone marrow transplants, and even sustained an injury from a knife, until the attending physician made it clear that any further kidney donation surgery would be life-threatening. The adoptive parents only said: "Hao'er is still young and cannot die." I signed the organ donation agreement with a smile and designated myself as the beneficiary. On the day of the funeral, my brother posted on WeChat: "No one will compete with me for the family property." Little did he know that my last act before my death was to send him the paternity test documents. Lin Nian - the adopted "mobile blood bank", who has lived for others for twenty-three years, and finally chose to die for himself, "brother". He was a spoiled white-eyed wolf since he was a child, enjoying the comfort that his sister had sacrificed his life for, until he received the paternity test.