Before leaving, you packed a bunch of steaming sweet potatoes in your bicycle basket. You were unceremonious, biting into one with a big mouthful and waving to Yan Zisu and her mother, "I'm leaving."
Then, you wobbly rode your bike away.
Seeing you leave, Yan Zisu stood there, staring at your back in a daze.
From the beginning until now, she completely didn't understand your actions; to her, each of your moves seemed casual yet was very deliberate. She couldn't comprehend why you would help her like this, as she didn't consider herself particularly beautiful nor having anything that might attract you. In any case, she felt very confused.
As for Yan Zisu's mother, she saw you as a unique individual.