Ryan arrived in Tokyo on a Tuesday in November. He was tired and hungry after the long flight. His plan was simple: find a restaurant, eat, and sleep. But when he walked out of the station, the streets were quiet. Most shops were closed. A few families walked past in nice clothes. A woman noticed him standing outside a closed café, looking at his phone. "Excuse me," she said. "Are you lost?" Her name was Keiko. She was with her husband and two children. Ryan explained his problem. Keiko smiled and said, "Today is Culture Day. It is a national holiday when people celebrate art, science, and Japanese traditions. Everything is closed. Would you like to join us?" Ryan did not know what to say, but he was hungry, so he said yes. They went to a park where people…