Top A was reborn as O and was confessed to by his mortal enemy

Due to a man-made car accident, the heir of a wealthy family, He Shen, was reborn into his younger brother. He not only became an illegitimate child hated by everyone, but also changed from a top strong A to a weak O. In order to investigate the truth, He Shen returned to the He family and attended his own funeral, but at the funeral he met his mortal enemy, Pei Yuan, who was also a top strong A. He unexpectedly discovered that his mortal enemy, who had always been tit-for-tat with him, was the only one who cried for him at the funeral... Pei Yuan: If I had known that you could like A, I would not have pretended before He Shen: Don't come over here! University campus + wealthy family ABO affectionate, paranoid, elegant, nobleman, gong, cynical, reborn cool...