Five years ago, after losing their parents, the lives of the siblings changed forever. While the narrator dropped out of high school and started working, their younger brother became consumed by gambling, living a life of constant debt and struggle. Recently, the brother found a promising job, but things took an unexpected turn when he stole money from the office, leading to a tense confrontation with their strict sensei.
The narrator, fearing the consequences, decided to step in and take responsibility for their brother’s actions. They approached the sensei, pleading for mercy and promising to repay the stolen 800 million yen. Impressed by the narrator’s devotion and determination, the sensei agreed—but with a condition: for the next ten days, the narrator would become the sensei’s woman.
As the days passed, the narrator embraced the challenge, enjoying the intimate and sensual experiences that came with it. The sensei was captivated by the narrator’s beauty, confidence, and willingness to give everything. From passionate kisses to deep, intimate moments, the narrator fully committed to the role, showing a deep connection and mutual desire with the sensei.
Throughout the ten days, the narrator experienced a journey of transformation, both emotionally and physically. Each encounter deepened their bond with the sensei, turning what started as a duty into a fulfilling and passionate experience. As the final day approached, the narrator was ready to face the next chapter of their life, knowing they had not only fulfilled their promise but had also found something truly special with the sensei.
