Return of the Queen Episode 12

The truth of the overseas honeymoon accident emerges: Lu Si Nan tried to kill Ye Hai Meng in a hotel pool secretly. Lu Si Yu is shocked and confronts his mother and sister for confirmation. His proud mother coldly warns him not to trust Ye Hai Meng, only deepening his doubts. He realizes the Lu family had ulterior motives in choosing Ye Hai Meng; they wanted her because she was the only daughter of the Ye family. Once married, her family’s wealth and Yunhai International shares would merge with the Lu family’s holdings. Believing they had gained a perfect son-in-law, the Ye family never suspected Lu Si Nan would attempt murder, altering the fates of both families. The revelation devastates Lu Si Yu, while Ye Hai Meng collapses as her old injuries flare up from the shock. (Source: NAY at MyDramaList)