My father was once a rising star in combat sports, but now he is little more than a sparring partner for rookies. My mother finally gave up on him and left, so my father and I, his adult son, share a tiny apartment. Then one day, a woman arrives and openly cuddles and flirts with him. Too embarrassed to watch, I hide in my room—but a few days later, my father vanishes without a word. His woman suddenly takes charge of looking after me, beginning our strange life together.