I met "Mio," a Japanese woman attending a graduate school in New York, as a sex friend. From that day on, our relationship rapidly progressed, and until her graduation, we repeatedly shared our bodies. Later, I graduated from university, and we were forced to part ways. Then, unexpectedly, we met again. In a rental room late at night, I face her again after so long. How long has it been since I've used my right arm this much? In that moment, nostalgia and passion pierce through my chest.