How did Alyssa Chia's Xing Yu die, and who killed her?

In order to further destroy the government, he instigated an attack on Princess Dai, who was waking up, and stabbed her with poisonous flowers. Knowing that she was poisoned, the princess suspected Liancheng had done it, so she ordered Mammy Li to push Liancheng into the water and drown him. Unexpectedly, Liancheng was saved by hiding in the dark. The contrast aroused the suspicion of Mammy Li. In order to ensure the safety of the princess, Mammy Li secretly investigated and found collusion with her, but was assassinated. Tong Jialin saw them when they moved the body. Trying to stabilize Tong Jialin, I came up with a way to move the body and blamed Liancheng for killing Mammy Li. Liancheng faces execution day after day. Time is running out. Hengtai is thinking hard day and night to solve the case, only to learn that Liancheng will be beheaded. It turned out that Dai, who woke up from her dream, had arranged with the queen, so she simply insisted on doing one thing at a time. Before putting it on, I asked the emperor to tell me what had happened, and asked Liancheng to be beheaded immediately to dispel Hengtai's thoughts. In prison, Liancheng has been fed a decapitated meal, and life and death are imminent. Calm Hengtai is ready to put all your eggs in one basket. He set a big trap, falsely claiming that Mammy Li was saved by the magic doctor and came back from the dead. In order to find out the situation, guilty Yu Xiu went into the morgue at night, and the result was in the middle of Hengtai's trap. Hengtai announced that Liancheng was officially accepted as a concubine. Although General Fu Cha opposed it, Hengtai didn't care at all, and finally his family chose to support it. Awakening the princess to harm Liancheng failed, and the queen suggested that the princess should value peace. In order to solve the problem of Hengtai and awakening Dai, the emperor specially called Hengtai into the palace to talk, but Hengtai persuaded the princess to go back to the house to live. The princess returned to Fu Cha with resentment, from the wedding to Hengtai and Liancheng's bridal chamber.