Who killed Su Qingyi in "The First Light of the Night 2"?

In "The First Light of the Lantern", Su Qingyi was killed by Hanako.

When Su Qingyi first met Hanako, she strongly opposed her becoming Guang’s lady, all because of the support of Rose’s mother. But this was not Hanako's motive, because Hanako also acted impulsively to protect the people he cared about. Hanako accidentally discovered that Su's mother was going to tell Ziwei the truth and take him away from Rose, so he went to Guang on the night of the murder and had a chance to confront Su's mother.

Mother Su humiliated Hanako in a contemptuous tone: "She hides at Luo Yunong's feet all day long. She has no opinion of her own. She only knows how to protect and please her master. To put it bluntly, she is just a dog."

This sentence brought back painful memories that Hanako did not want to think of. His violent ex-boyfriend also said the same thing. So Hanako completely lost her temper and picked up the ashtray on the table and hit Su's mother hard.

The reason why Su Qingyi humiliated Hanako in "The Lights Come on"

Su Qingyi has a deep inferiority complex about herself, which made her unconsciously put herself in a lower level when facing Luo Yunong. And when facing Hanako, who was weaker than her, she took it a step further. When the two met for the first time, Su Qingyi made it clear that she looked down on Hanako. Hanako doesn't know Japanese or wine. Su Qingyi even ridiculed Hanako for her poor manners and conversation.

Ordinary people would mostly ignore someone who is much worse than themselves or treat it as a joke, but Su Qingyi hates Hanako. This mood is also very complicated. Su Qingyi criticized Hanako for her poor conversation and asked her not to put gold in her face. Su actually wanted to prove that compared to Hanako, she was a friend worthy of Luo Yunong. By belittling Hanako, Su was able to fill her inferiority complex.