8.50/10 2021-04-04 24 minutes.HD"S" is a dangerous, top secret, no-holds-barred downhill skateboarding race down an abandoned mine. When avid skateboarder Reki takes Langa to the mountain where "S" is held, Langa, who's never been on a skateboard in his life, finds himself sucked into the world of "S", and…?!Year: 2021Studio: tv asahi, Nagoya TV, ABC TV, ABEMACountry: Japan