Su Xiangcheng’s Twenty-First Birthday

Su Xiangcheng’s Twenty-First Birthday is significant because it transforms a neglected personal milestone into a concentrated drama of love, obligation, and uncertainty. Su Xiangcheng and Su Qingrou have both lived through years of family turmoil and have stopped treating birthdays as occasions worth celebrating. Lu Xun’s attempt to restore the day’s importance—by arranging a private dinner, preparing a gift, and trying to protect the celebration from emotional conflict—therefore carries a meaning larger than ceremony. The birthday becomes a measure of whether Su Xiangcheng can feel chosen rather than merely cared for, and whether affection can survive the unresolved presence of other women and broken relationships.

A Birthday Long Denied

Su Qingrou reminds Su Xiangcheng that her twenty-first birthday is approaching, prompting Su Xiangcheng to realize that the date has nearly passed without entering her thoughts. Both women are in their twenties, but the family’s troubles have made celebration seem inappropriate or impossible. Su Xiangcheng has not considered holding a birthday party for herself, while Su Qingrou has gone without a birthday celebration for a very long time. The shared deprivation gives the occasion a quiet sisterly dimension: the birthday belongs to Su Xiangcheng, but it also recalls the years in which both sisters have had to place family crisis above ordinary happiness.

The setting in Italy also makes the birthday a temporary refuge from the family’s usual pressures. Su Qingrou explains that the Prime Minister arranged for someone to send her there, allowing the sisters to be together. Su Xiangcheng asks whether Su Qingrou came specifically to accompany her and worries about whether anyone is there to accompany Su Qingrou in return. Her concern shows that the birthday is not treated as a purely individual celebration. It becomes an opportunity for the sisters to acknowledge their shared loneliness and the unequal distribution of care in their lives.

Lu Xun’s Deliberate Celebration

Lu Xun responds to the birthday with an effort that is both practical and intimate. He tells Su Xiangcheng that he knows about the date and reassures her that his arrangements are not excessive merely because they are elaborate. He kisses her forehead and presents his confidence as a promise that she need not concern herself with the difficulties surrounding the celebration. His gesture attempts to convert material planning into emotional certainty, even though Su Xiangcheng remains aware that his devotion does not necessarily amount to love.

The clearest expression of this effort is his decision to reserve the entire dining room for the birthday dinner. The private setting gives the evening the form of a protected space, separated from the public world and temporarily controlled by Lu Xun. Yet the protection is unstable from the beginning. Su Qingrou enters holding Lin Yanche’s arm, while Song Yun'er is already seated at the table. Su Qingrou and Lin Yanche choose seats at a distance and continue speaking with each other, creating a visible counterpoint to Song Yun'er’s presence and making the dinner less a simple celebration than a managed encounter among damaged relationships.

Lu Xun also tells Su Xiangcheng that Song Yun'er has not yet left and will attend the dinner. He explains that he spent the previous night talking with her and believes she has accepted the situation and is willing to wait. The account gives Song Yun'er a position within the birthday’s emotional architecture: she is simultaneously a guest, a rival presence, and someone whose apparent willingness to wait helps Lu Xun keep the event together. Su Xiangcheng immediately recognizes the danger of gathering Song Yun'er with Su Qingrou and Lin Yanche, asking whether the banquet can continue under such conditions.

Gifts, Performance, and Uneasy Intimacy

The birthday dinner includes a public performance that makes affection visible through ritual. After Su Xiangcheng and Lin Yanche return to their seats at the end of a song, Su Xiangcheng stretches out her hands and asks Lu Xun where her present is and when he will give it to her. Her impatience is playful, but it also exposes the emotional demand beneath the teasing: a birthday gift must arrive not merely as an object but as proof that Lu Xun has remembered her and intends to place her at the center of the evening.

Lu Xun tells her that he will give her the present that night. Su Xiangcheng points out that this was already his plan and insists that she wants it immediately. The exchange captures the unstable balance of their marriage. Lu Xun offers care through preparation and delayed surprise; Su Xiangcheng presses for an immediate, unmistakable sign of preference. The birthday therefore stages a recurring contrast between his confidence in what he has arranged and her need to feel the affection directly.

That need is complicated by the language of kinship and marriage surrounding the couple. In another episode, when Lu Xun asks what their relationship is, Su Xiangcheng identifies him as her husband while flirtatiously removing his shirt. The moment makes marital recognition a source of reassurance, but Lu Xun remains uncertain whether she knows whom she is addressing. Her intoxication and the presence of other men make the title both intimate and precarious. Within the birthday sequence, the gift and the dinner serve a similar function: they try to make the marriage’s emotional claims tangible in circumstances where labels, family roles, and romantic loyalties repeatedly overlap.

Morning Absence and the Birthday’s Reversal

After returning to the hotel, Su Xiangcheng collapses onto the bed without even having the energy to shower. She stares at the ceiling for a long time before falling asleep, and when she opens her eyes it is already morning. The physical exhaustion replaces the expected afterglow of celebration with a suspended, depleted aftermath. The birthday has not produced uncomplicated joy; it has left her alone with thoughts that she cannot resolve through the evening’s arrangements.

Lu Xun is absent when she wakes. Her phone contains his message that he will return after sending Song Yun'er back and asks her not to let her thoughts run wild. The message attempts to preserve continuity, but it also confirms that Song Yun'er has occupied Lu Xun’s attention during the birthday’s immediate aftermath. Su Xiangcheng’s anxiety is not presented as an irrational interruption of happiness; it is tied to the concrete arrangement that Lu Xun has made and to the continuing presence of a woman whose relationship with him remains emotionally charged.

By the time Lu Xun returns to the hotel, the decorations from the previous night have disappeared and Su Xiangcheng is gone. She has taken all her luggage, leaving Lu Xun to infer that she has either returned home or gone to find Su Qingrou. This ending reverses the logic of the celebration. Lu Xun had tried to gather people, reserve a room, provide a gift, and hold the evening together, but the birthday concludes with the central person absent and the signs of festivity removed. The carefully constructed occasion cannot guarantee emotional security.

Meaning Within the Larger Relationship

The birthday exposes the limits of care when care is not experienced as love. Su Xiangcheng acknowledges that Lu Xun dotes on her and that she can feel his devotion, yet she does not believe that he loves her. That distinction governs the entire occasion. His actions are generous and deliberate, but her response depends on whether those actions can overcome suspicion, rivalry, and the history of concealed or ambiguous relationships.

The event also clarifies the difference between formal status and emotional certainty. Su Xiangcheng can call Lu Xun her husband, and Lu Xun can organize a celebration worthy of a wife, but neither the title nor the ceremony settles the question of what the marriage means to them. The birthday’s movement from neglected date, to protected dinner, to contested gathering, to vanished decorations and missing wife gives the occasion a complete emotional reversal: recognition is offered, tested, and then withdrawn through departure.

Its significance extends beyond a single dinner because the birthday repeatedly places blood, adoption, cousinhood, marriage, and desire beside one another. Lu Xun’s cousin Shen Yiyun is described as a child adopted by his uncle, and Su Xiangcheng later challenges the idea that a relative without blood ties should be treated as entirely outside romantic suspicion. Chu Fei similarly distinguishes between nominal closeness and actual kinship while expressing attraction to Su Xiangcheng. These surrounding tensions make the birthday part of a broader narrative in which family labels can protect intimacy, conceal desire, or intensify jealousy. Su Xiangcheng’s twenty-first birthday is therefore not simply a celebration delayed by family hardship; it is a brief ceremony in which the novel tests whether affection can become secure once it enters the unstable language of family and marriage.