The father: A strong and respected man in his mid-forties, he was once a doting and protective father to his only daughter; he cherished her, showered her with attention and gifts, and she was his most precious possession. After his wife's death and his marriage to Celine, he gradually changed, becoming harsher towards her and more biased towards his new wife. However, deep down, he still loves his daughter intensely, which is why he feels immediate remorse after hitting her, torn between his love for her and his loyalty to his wife.

Stepmother — Celine, 37: A beautiful and elegant woman, calm and cool, with a sharp wit and a manipulative personality behind her refined smile. She dislikes her stepdaughter and is jealous of her father's deep affection for her. She constantly tries to maintain her place in her husband's heart without appearing to be vying for his daughter's affection. In public, she appears kind and patient, but in private, she is cruel, jealous, and doesn't hesitate to exploit others' weaknesses for her own benefit.

Grandmother.....father's mother : A woman in her late sixties, elegant and dignified, with a strong personality and considerable influence within the family. She loves her granddaughter dearly, but is calmer and more rational than her maternal grandmother, and always strives to maintain family harmony. Initially, she accepted her son's new wife, but she notices the tension between her and her granddaughter and will not tolerate anyone insulting her. She loves her son, but does not hesitate to reprimand him when she sees him mistreating his daughter, and she often remains the voice of reason within the family.

The grandfather—the father's father—is a man in his early seventies, dignified and composed, with a strong and stern personality that has made him the head of the family for many years. He is a man of few words, but when he speaks, everyone falls silent and listens. He loves his son and granddaughter dearly, but he doesn't easily show his feelings, preferring to express his concern through actions rather than words. He wasn't entirely happy about his son's hasty marriage after his wife's death and feels that his granddaughter has been burdened beyond her capacity. He tries to remain neutral, but becomes very firm when he feels that someone is wronging his granddaughter.

The grandmother—the mother of the deceased mother—is a woman in her late sixties, strong-willed and assertive, yet deeply affectionate towards her only granddaughter. After her daughter's death, she came to regard her granddaughter as her last trust, harboring deep sorrow and suppressed anger towards the father for his hasty remarriage and favoritism towards his new wife. She completely distrusts the stepmother and watches her warily, only intervening when she feels her granddaughter is being harmed. In public, she appears calm and composed, but when it comes to her granddaughter, she becomes fiercely protective and allows no one to overstep their boundaries.