Su Wanqing accompanies her mother to attend the wedding, yet at the entrance of the Gu family mansion exposes the wrongful case of her father Su Jianguo from thirty-five years ago. The Gu family elder admits the indebtedness, and Su Wanqing along with Gu Chengze investigate the old case, from the research institute, old dock to the company interior, unearthing the truth of data tampering and risk concealing. The Gu family makes a public apology and accepts the investigation, allowing justice that has been silenced for many years to finally be seen.