Docchi ni Shiro, Dotsubo

High school teacher Yukino's life is marked by a sexless marriage and a deep sense of unfulfillment, stemming from her own repressed desires. In a desperate attempt to satiate her longings, she uses a dating app to arrange a one-night-stand, but her encounter takes a devastating turn when she discovers that her partner is, in fact, a student from her own school. This discovery plunges her into a complex and taboo love triangle, threatening to destroy the delicate balance of her professional and personal life. As Yukino navigates the treacherous landscape of her forbidden desires, she must confront the consequences of her actions and the true nature of her relationships.