What is the origin of Qin's weakness in fire nirvana?

I think Qin is as weak as Qin. In Nirvana in Fire, he was originally a counselor who respected the king. Is the prince's brain trust, weak as Qin is the disciple of Princess Slippery who is in charge of tea. It is an organization with comprehensive execution from intelligence gathering to assassination. Xie Yu is the first-class military commander of Girder, and he is in power. Be both civil and military, intelligent and brave, weak as Qin, capable and smart. On the surface, they are evenly matched.

Qin mainly collects information, and most of Yu Wang's news is obtained through Qin Xiangrou. As weak as the Qin Dynasty, Princess Xuan Ji, as a grand master, is not only thoughtful, but also good at using the imperial palace to control the ministers in the DPRK. Although she is a woman, she manages the tricks of tea very carefully. In this relaxed entertainment place, many officials have fun every day, and the people trained with bare arms are talented, beautiful and invincible. In the end, Lu Tong of Lianjiang Zuomeng was recruited under the weak calculation of Qin Dynasty.

However, Qin's weak support is doomed to failure. This has to start with Princess Xuan Ji's plan. When Princess Xuan Ji died, she gave some rights to her disciple Bentham, while others were directly given to Xia Jiang. When Xia Jiang arranged some unknown assassinations, he took advantage of the mysterious woman left by Princess Xuan Ji. Those who are deeply embedded in the palaces are also the people left by Princess Xuan Ji to Xia Jiang. When the princess died, she also sent a kit as weak as Qin, which could not be opened unless she had to. Only in this way did she tell the true story of Yu Wang.

Qin is a beautiful, unscrupulous and intelligent beauty, and is known as the first counselor in the palace and the boss behind the scenes of tea. Mainly responsible for collecting intelligence, he is actually an apprentice of the last princess Xuan Ji of the Slippery, aiming at revenging the Red Flame Army and reviving the Slippery. Qin Prajna took it as his duty to destroy the Daliang Dynasty Bureau, and he was bent on provoking the reputation king to compete with the prince and subverting the girder. It was her handwriting that later assassinated the honorary king. Qin takes his master as an idol and takes it as his duty to destroy Daliang.