It could be Laura's jealous ex - lover. Maybe this person was enraged that Laura had moved on with her life and was getting close to Peter. So, in a fit of jealousy, they planned to get rid of Laura and frame Peter for it.
One possible plotline could be that Laura faked her death to escape from some other danger, and Peter was wrongly accused. For example, she might have been involved with some dangerous criminals who were after her, and she made it look like Peter was responsible to throw them off her trail.
There were two reasons why Wu Zetian did not kill Princess Taiping. First of all, Princess Taiping was Wu Zetian's only daughter. She had an important emotional value to her. Wu Zetian's maternal love was overflowing and she could not bear to kill her own daughter. Secondly, although Princess Taiping threatened Wu Zetian's position in the competition, she was not forced to do so. Therefore, Wu Zetian chose to keep Princess Taiping alive.
If it's a case of a missing person in a crime - related situation, it could be a stranger. For example, in some real - life kidnappings, the culprit is someone the victim doesn't know who has malicious intentions.
It's hard to say for sure. Maybe it's a character who has been lurking in the background all along and whose motives were hidden.
Peter could be a disgruntled noble in the fanfiction. He might be someone who has been overlooked for promotions or honors by the emperor, and this has led to his resentment and desire to kill the emperor.
Perhaps an enemy from a rival group. They might see Sakura as a threat to their plans, so they poison her to get her out of the way. Another possibility is a character who has been secretly harboring a grudge against her for a long time, and finally decides to take action by poisoning her.
The real culprit behind Qing Yuannian was the Second Prince. There were many signs in the play that indicated that the Second Prince was the mastermind behind the assassination of Fan Xian on Niulan Street, including his invitation to Fan Xian to the Drunken Immortal Residence and his planning of Fan Xian's assassination. In addition, some search results mentioned that Prime Minister Lin Ruofu and Advisor Wu Bo 'an were related to the Second Prince. They might be accomplices of the mastermind. Therefore, based on the information provided, it could be concluded that the real culprit behind Qing Yuannian was the Second Prince.
There were many possible candidates for the mastermind behind Qing Yuannian, including Lin Gong, the Second Prince, and the Eldest Princess. Lin Gong was believed to be the mastermind behind the assassination of Fan Xian on Niulan Street. He was a member of the prince's faction and his motive was to prevent Fan Xian from managing the palace treasury and prevent Lin Wan 'er from marrying Fan Xian. However, other search results also mentioned that the Second Prince and the Eldest Princess might have participated in the assassination plan. Therefore, based on the information provided, it was impossible to determine who the mastermind behind Qing Yunian was.
The real culprit behind Qingyu Nian was Lin Gong. Lin Gong was a member of the Prince's faction and was thought to be the mastermind behind Fan Xian's assassination at Niulan Street. His motive was not to let Fan Xian control the palace treasury and not to let Lin Wan 'er marry Fan Xian. Although there were some search results that mentioned that the Second Prince and Eldest Princess might have also participated in the assassination of Fan Xian, according to the information provided, Lin Gong was the mastermind that Si Lili had exposed during the Qing years.
The real culprit behind Qingyu Nian was Lin Gong. Lin Gong was a member of the Prince's faction and was thought to be the mastermind behind Fan Xian's assassination at Niulan Street. His motive was not to let Fan Xian control the palace treasury and not to let Lin Wan 'er marry Fan Xian. Although there were some search results that mentioned that the Second Prince and Eldest Princess might have also participated in the assassination of Fan Xian, according to the information provided, Lin Gong was the mastermind that Si Lili had exposed during the Qing years.