Rin Hojo (mostly known as Shinigami) is one of the characters on the Initial D series and Ryosuke's (former) rival who is also Go Hojo's older brother.
Rin drives a gray Nissan Skyline GT-R (R32), because of his dangerous drving style and violence to his victim, he's called Shinigami. He's very quiet and emotionless, yet very dangerous.
Rin has had a long-standing feud with Ryosuke because of a girl named Kaori, who was Rin's arranged fiance at the time. Kaori would commit suicide after Rin verbally abuses her, claiming that she'll regret rejecting him when she and her family will be ruined. After this event, Rin left the racing scene and became a recluse, locking himself in his home for years, before making a surprising return and racing (unofficially) against Team Spiral's leader, Ryuji Ikeda. Rin is an extremely skilled driver who utilizes a dangerous driving style.
He races against Ryosuke in an attempt to make him pay for a past incident involving Kaori, at time trying to push him off the road. This severely backfires as Ryosuke manages to shake off Rin's attacks and, therefore, destroys his tires and brakes. To prevent him from crashing at the base, Ryosuke and Ikeda (who had been spectating from behind) use their cars to buffer Rin's R32 and slowed it down. Fortunately, the whole race managed to bring closure of Kaori's death to Rin: he knew Ryosuke felt his pain.
After he apologizes to Ryosuke and no longer became a Shinigami, he's made a return by watching a race between Project D and Sidewinder and became Sidewinder associates alongside chief mechanic Eiji Kubo.