She was accused by her stepsister that she was the one who spilled water on her father's laptop, so her father got angry at her and beat her hand until it was injured and swollen, not long after that the next day she had a fever and her parents only told the maid to give her regular fever medicine, but after a week her fever didn't go away until her father checked on her

"Which one hurts, hm? Why is your hand so weak....try moving your hand.." carries her and pats her head