I don't know which novel or fictional character 'psychic detective Yamunaka' refers to, so I can't provide an accurate answer. If you can provide more context or point out which work you are referring to, I will try my best to answer.
The reason Teng Zijing wanted Fan Xian to kill him was not clearly answered in the search results provided.
The reason the Emperor wanted to kill Fan Xian's mother, Ye Qingmei, was because Fan Xian was the son of the Qing Emperor and Ye Qingmei. He was the person most likely to ascend the throne and posed a threat to the Emperor. Fan Xian's existence made the Emperor feel unsafe, especially after learning that Ye Qingmei had been killed by the Emperor. Fan Xian developed hatred and dissatisfaction towards the Emperor. The specific motives and details might need to be further observed and understood in the play.
There were several reasons why the Emperor had killed Fan Xian's mother, Ye Qingmei. First of all, Ye Qingmei held the economic lifeline of the Qing Kingdom. This made the Qing Emperor unhappy because, as the nominal Emperor, he hoped that he could hold economic power. Secondly, Ye Qingmei was pregnant. The Qing Emperor was worried that she would let the child become the Emperor. This was unacceptable to the Qing Emperor. Third, Ye Qingmei advocated equality for everyone, while the Qing Emperor hoped for one person to rule over everything. The conflict between these two ideas led to the Qing Emperor's dissatisfaction with Ye Qingmei. Finally, Fan Xian's mother, Ye Qingmei, was a threat to the Qing Emperor's throne. In summary, these reasons led to the Qing Emperor's decision to kill Fan Xian's mother, Ye Qingmei.
There were several reasons why the Emperor wanted to kill Fan Xian's mother, Ye Qingmei. First of all, Ye Qingmei held the economic lifeline of the Qing Kingdom. This made the Qing Emperor unhappy because, as the nominal Emperor, he hoped that he could hold economic power. Secondly, Ye Qingmei was pregnant. The Qing Emperor was worried that she would let the child become the Emperor. This was unacceptable to the Qing Emperor. Third, Ye Qingmei advocated equality for everyone, while the Qing Emperor hoped for one person to rule over everything. The conflict between these two ideas led to the Qing Emperor's dissatisfaction with Ye Qingmei. Finally, Fan Xian's mother, Ye Qingmei, was a threat to the Qing Emperor's throne. In summary, these reasons led to the Qing Emperor's decision to kill Fan Xian's mother, Ye Qingmei.
There were several reasons why the Emperor had killed Fan Xian's mother, Ye Qingmei. First of all, Ye Qingmei held the economic lifeline of the Qing Kingdom. This made the Qing Emperor unhappy because, as the nominal Emperor, he hoped that he could hold economic power. Secondly, Ye Qingmei was pregnant. The Qing Emperor was worried that she would let the child become the Emperor. This was unacceptable to the Qing Emperor. Third, Ye Qingmei advocated equality for everyone, while the Qing Emperor hoped for one person to rule over everything. The conflict between these two ideas led to the Qing Emperor's dissatisfaction with Ye Qingmei. Finally, Fan Xian's mother, Ye Qingmei, was a threat to the Qing Emperor's throne. In summary, these reasons led to the Qing Emperor's decision to kill Fan Xian's mother, Ye Qingmei.
There were several reasons why the Emperor wanted to kill Fan Xian's mother, Ye Qingmei. First of all, Ye Qingmei held the economic lifeline of the Qing Kingdom. This made the Qing Emperor unhappy because, as the nominal Emperor, he hoped that he could hold economic power. Secondly, Ye Qingmei was pregnant. The Qing Emperor was worried that she would let the child become the Emperor. This was unacceptable to the Qing Emperor. Third, Ye Qingmei advocated equality for everyone, while the Qing Emperor hoped for one person to rule over everything. The conflict between these two ideas led to the Qing Emperor's dissatisfaction with Ye Qingmei. Finally, Fan Xian's mother, Ye Qingmei, was a threat to the Qing Emperor's throne. In summary, these reasons led to the Qing Emperor's decision to kill Fan Xian's mother, Ye Qingmei.
There were several reasons why the Qing Emperor killed Fan Xian's mother, Ye Qingmei. First of all, Ye Qingmei held the economic lifeline of the Qing Kingdom. This made the Qing Emperor unhappy because, as the nominal Emperor, he hoped that he could hold economic power. Secondly, Ye Qingmei was pregnant. The Qing Emperor was worried that she would let the child become the Emperor. This was unacceptable to the Qing Emperor. Third, Ye Qingmei advocated equality for everyone, while the Qing Emperor hoped for one person to rule over everything. The conflict between these two ideas led to the Qing Emperor's dissatisfaction with Ye Qingmei. Finally, Fan Xian's mother, Ye Qingmei, was a threat to the Qing Emperor's throne. In summary, these reasons led to the Qing Emperor's decision to kill Fan Xian's mother, Ye Qingmei.
There was no clear answer as to why Fan Xian wanted to kill his father. However, Fan Xian's father, the Qing Emperor, was portrayed in " Celebrating Years " as a scheming person. He had killed Fan Xian's mother, Ye Qingmei, and had a strong desire for power. Although the Qing Emperor was tolerant and indulgent toward Fan Xian, hoping that he could grow up quickly and take charge of an area, he also saw Fan Xian as his chess piece. Therefore, Fan Xian might have his own reasons and motives to oppose his father, but the specific details were not mentioned in the search results provided.
The reason Fan Xian killed his father, the Qing Emperor, was for revenge. The Qing Emperor was Fan Xian's biological father. He had killed Fan Xian's mother, Ye Qingmei. Fan Xian decided to avenge his mother, so he chose to kill the Qing Emperor. Fan Xian had a deep hatred for the Qing Emperor. He believed that the Qing Emperor was his enemy who had killed his mother. Although the Qing Emperor had shown Fan Xian friendliness and tolerance, Fan Xian knew that the Qing Emperor was only using him as a chess piece, using and controlling him. Fan Xian decided to kill the Qing Emperor to avenge his mother's hatred.
The reason Fan Xian killed his father was because his father, the Qing Emperor, had killed Fan Xian's mother, Ye Qingmei. He also had a strong desire for power. The Qing Emperor was a scheming person. He was tolerant and indulgent toward Fan Xian, but in reality, he was using Fan Xian as a chess piece. Fan Xian decided to kill the Qing Emperor for revenge. This plot appeared in the novel Celebrating the Years.