"Takashima-san, our neighbor, is going on a trip, so he asked me to look after his dog." My wife is very weak-willed and can't refuse when asked because of her honest and kind personality, and my father is a huge womanizer who spends every day going to cabaret clubs. This time, I left them at home and went on a business trip for three days and two nights. It would be a lie to say I wasn't worried because they are family. In fact, I was only worried, and I spent three sleepless nights unable to concentrate on my work. And then, the worst Mirai I had imagined became a reality...