Standing in the darkness of a quiet parking lot in the city of Toyota, Aichi Prefecture, 20-year-old construction worker Yusei Mizuno starts to change into a tokkōfuku combat uniform he hasn't worn for two years.
The change in Mizuno is immediate. Gone is the smiling former motorcycle gang member with an apparent crush on K-pop act Twice. He's now glaring at the camera with his lips closed tightly, offering up a look that's a mix of James Dean at his peak and classic Dirty Harry.
A provocative statement has been stitched onto the right breast pocket of the jacket that simply says, "Kenka jōtō," or "Bring it on."