Three years after my mother's death, every Friday my father started bringing his mistress home. The woman ignored me completely, yet watching her entwined with my father tormented me deeply—though deep down, I began to develop feelings for her. One Friday, a massive typhoon struck, halting all train services. My father had to stay at work, leaving me alone with his soaked mistress. As the sound of rain filled the house, that night of solitude brought about an unforgettable encounter between us.