Watch Document 72 Hours Season 4 Episode 19 Online

There's a monster-catching smartphone game that took the world by storm in the summer of 2016. And a park in the Kinshicho area of Tokyo has become the go-to spot for players looking for rare monsters. It's packed all day and night with people staring at their phones. There's a culinary school dropout on a 10-hour streak, an elderly couple catching monsters on a date, and young guys looking to pick up dates as well. For 3 days we meet monster hunters at this mysterious park in Tokyo.