Who gave the whirlwind maiden grass?

In the novel, Bai Cao always thinks that she has been caring and taking care of her. It was Chu Yuan who sent the strawberry hairpin on her birthday, and later she learned that it was Ruobai. When the original comes into contact with the white grass, the white grass often gives up dating with the original to train. Later, Chu Yuan and Xiaoying told her that the person she liked might not be Chu Yuan, but Ruobai, and Baicao would help her sew shoes when she found that Ruobai was ill. Knowing Ruobai's illness, she confessed to him, but she didn't know what she liked about Ruobai. They agreed that after the white grass competition, Ruobai would tell her what she liked after the operation.