Tetsu

Tetsu is the elderly servant sent by Yozo's elder brother to care for Yozo after his release from the mental hospital, during his final years of exile in a thatch-covered, worm-eaten house on the outskirts of a coastal hot-spring village. She is described as an ugly woman close to sixty, with horrible rusty hair, and her presence marks the terminal phase of Yozo's descent: a life stripped of all urban pretense, artistic ambition, and human connection, reduced to a grotesque domestic routine with a caretaker who is neither kind nor cruel but simply there. In this remote setting, Tetsu becomes the last human being with whom Yozo has any sustained contact, and their relationship—part servitude, part mutual irritation, part strange intimacy—encapsulates the novel's final verdict on what it means to be "disqualified as a human being."

Identity and Background

Tetsu is introduced without a personal history; she appears in the narrative only as a function of Yozo's brother's practical arrangements. She is sent to the hot-spring house—a five-room, ancient-looking structure with peeled walls and woodwork so worm-eaten as to seem beyond repair—to cook, clean, and keep watch over Yozo. Her physical description is deliberately unflattering: she is ugly, nearly sixty, with hair of a horrible rusty color. Nothing in the text suggests she has any family, any past life, or any identity beyond her role as the caretaker of a disgraced man. She is, in effect, the final embodiment of the world's indifference—a person who has been assigned to Yozo not out of affection or duty but because someone had to be.

Life with Yozo: Quarrels and Violations

During the three years Yozo lives in the coastal house, his relationship with Tetsu takes on a strange, degraded intimacy. He records that he has "several times been violated in a curious manner by the old servant," a phrase that suggests a sexual dimension to their cohabitation, though the exact nature of the violation is left ambiguous. They also quarrel like husband and wife, a domestic pattern that mocks any conventional idea of marriage or partnership. This is the only sustained human relationship Yozo has in his final years: not love, not friendship, not even enmity, but a weary, irritable cohabitation punctuated by moments of physical transgression. The relationship mirrors the novel's broader theme that human connection, for Yozo, can never be clean or redemptive—it is always tainted by fear, need, and the grotesque.

The Laxative Incident: Absurdity and Resignation

The most fully dramatized episode involving Tetsu occurs when Yozo, suffering from insomnia, sends her to the village drugstore to buy sleeping pills. She returns with a box of a different shape, which Yozo, paying no particular attention, takes before bed. Instead of sleep, he is seized by stomach cramps and terrible diarrhea, rushing to the toilet three times in succession. Examining the box, he discovers it is a laxative. As he lies on his bed staring at the ceiling, a hot water bottle on his stomach, he considers whether to complain to Tetsu. He thinks of saying, "These aren't sleeping pills. They're a laxative!"—but instead he bursts out laughing. The incident crystallizes the absurdity of his existence: he has taken a laxative in order to go to sleep. His response is not anger but laughter, and the reflection that "reject" must be a comic noun. Tetsu, in this moment, is not a villain or a fool; she is simply the agent of a cosmic joke, the final proof that Yozo's life has become a farce in which even the most basic physical needs cannot be met correctly.

Narrative Role and Thematic Significance

Tetsu functions as the last mirror held up to Yozo's condition. Unlike the earlier women in his life—Tsuneko, Shizuko, Yoshiko—who each represented some possibility of love, trust, or redemption, Tetsu represents nothing but the bare fact of being looked after. She is not beautiful, not young, not kind, not cruel; she is simply there, performing the minimal functions of care. Her presence underscores the novel's final movement: Yozo has been removed from all the arenas in which he once struggled—art, politics, love, marriage, addiction—and placed in a rural house where the only drama is whether the servant will bring the right medicine. The laxative incident, with its dark comedy, is the last event in the notebooks before the epilogue, and it leaves Yozo in a state of neither happiness nor unhappiness, only the quiet recognition that "everything passes." Tetsu, as the companion of this final phase, is the human face of that passing—ordinary, unremarkable, and utterly indifferent to the tragedy she witnesses.