Naoko and Kizuki

Naoko and Kizuki are childhood companions and first loves whose bond is described as exceptionally intimate, enduring, and sheltered from ordinary social experience. They grow up together from the age of three, become romantically involved as children, and imagine a shared life as the most natural possibility. Kizuki’s death ends that future, but not the hold their relationship has on Naoko: she says she cannot understand how to love someone else, and later explains that the pair had been struggling to connect with the wider world through Watanabe. Their story makes intimacy at once a refuge and a barrier, while showing how a bond with the dead persists in the lives of those left behind.

Childhood and intimacy

Naoko traces the relationship to when she and Kizuki were three. They were always together, talked constantly, and understood one another with a fluency that she presents as the basis of their closeness. Their first kiss came in junior school; when Naoko first menstruated, she ran to Kizuki in distress. These memories describe not only affection but an established reliance: she turned to him instinctively at a vulnerable moment, as she had done throughout their childhood.

Their closeness continued into adolescence and became romantic without, in Naoko’s account, requiring a decision or a change in how they understood one another. They kissed and became physically intimate while still young, but she says they did not consider themselves to be acting wrongly. They were accustomed to openness with each other and treated their bodies as something they shared, while stopping short of intercourse because they feared pregnancy and did not know how to prevent it. The account presents their intimacy as part of a world they had built together, rather than as a relationship shaped by the usual self-consciousness and anxiety of adolescence.

A closed world and its limits

Naoko describes Kizuki as different in private from the boy Watanabe knew. Around Watanabe, Kizuki showed his best side; with Naoko, he could lower his guard, shift quickly between talkativeness and depression, and reveal weaknesses he tried to conceal from others. He repeatedly wished to improve himself but lacked confidence, and his inability to change made him angry and sad. Naoko loved both his strengths and his flaws, insisting that his weakness did not make him mean or deceitful.

The three of them sometimes formed what Naoko remembers as a particularly peaceful circle. When Watanabe was present, she could relax because she saw Kizuki’s best side too. But she recognizes that this arrangement could not last forever. The couple’s attachment felt complete within itself, yet it left them poorly equipped for life beyond it. Naoko imagines that if Kizuki had lived, they would have remained together and eventually grown unhappy—not because their love was false, but because they would have had to confront the demands of growing up and entering society.

Kizuki’s death and Naoko’s account

After Kizuki died, Naoko says, she did not know how to relate to other people or what it meant to love someone else. When she explains this to Watanabe, the conversation breaks into grief: she knocks over her wineglass, falls silent, and then sobs. Reiko comforts her. The scene makes visible the gap between Naoko’s ability to explain the relationship and the force of the loss that explanation cannot contain.

Naoko links Kizuki’s death and her own distress to what she calls the pain of growing up, a debt the two of them had not paid when they were young. She compares their earlier life to that of children on a desert island, meeting hunger or loneliness within the safety of their shared world. As they entered society, Watanabe became their connection with the outside. She tells him that Kizuki loved him and that he remains her only link to that wider world. In this account, Watanabe is not simply an outsider to the pair: his friendship was their first connection with anyone beyond their closed circle, even as their attachment left him wounded.

Love, loss, and the continuing bond

Naoko insists that she and Kizuki did not choose their relationship as though weighing alternatives; being together seemed natural, and she could not imagine becoming interested in anyone else. Yet her imagined future with him is not an uncomplicated idyll. Their intimacy protected them from loneliness and the ordinary tensions of growing up, but she believes that this protection could not last. Their love contains both the tenderness of mutual understanding and the vulnerability of a life that has not prepared them for separation or the wider world.

The novel’s treatment of their bond also frames death as part of life rather than a separate realm. Watanabe comes to understand that death is present within the living world, and after Naoko dies he experiences memories of her as an ongoing inner presence. That later grief does not simply repeat Naoko’s account of losing Kizuki: Watanabe recognizes that no truth or sincerity can cure the sorrow of losing someone beloved. The distinction matters. A philosophy may help make sense of death, but it cannot undo bereavement or restore the dead. Naoko and Kizuki’s relationship therefore survives not as a promise of reunion in the world of the living, but as a formative attachment whose consequences continue through Naoko, Watanabe, and their struggle to keep living.