<Chinese TV Series NOW> ”The Starry Path” EP16, Hua Zhi begins to realize Gu Yanxi's identity = Synopsis and spoilers

※This article contains spoilers. In EP16 of the Chinese TV series "The Starry Path," Hua Zhi realizes Gu Yanxi's identity.
Xia Jin'er secretly hires Xia Ming as the bookkeeper for the Hua family. Meanwhile, Hua Zhi presents Karei with a restored painting of the treasure and invites him to be her tutor.
He succeeds in this. Hanaji starts a "Hyakuyo-ka" (Hundred Works Course) that incorporates work experience so that the children of the Hana family will not be looked down upon by merchants. He invites Gu Yanshi to be the first lecturer, and
The children of the Hua family broadened their perspectives through the Hundred Works Department and gradually began to change. Meanwhile, Kei learns that the Empress Dowager and Lin Wan are exchanging secret letters.
To clear the emperor's name, Gu Yanxi secretly stole the letter, which described their friendship and contained no political intrigue.
Gu Yanxi submitted the letter to Emperor Qing to prove the innocence of the Hua family.
At the same time, he asks why he went to the Hua house, and Gu Yanxi replies that he went to the Hua house to investigate the fire.