Street Fighter Alpha Part 2

Ryu is still contemplating the death of his master, Gouken, while at the same time experiencing trouble with the "Dark Hadou" (殺意の波動 Satsui no Hadō, lit. "Surge of Murderous Intent"), an evil energy which Gouken's brother, Akuma, succumbed to a long time ago. While in the city, Ryu fights off a few agents working for Shadaloo, gaining the attention of Interpol agent Chun-Li, who does some background research and realizes Ryu is the man who beat Sagat, the Muay Thai Champion, many years ago. Also catching sight of Ryu is aspiring martial artist Sakura, who becomes fascinated with Ryu and vows to track him down and become his student.

In Japan, Ryu is approached by a mysterious woman, Rose, who questions him briefly about his hold over the Dark Hadou and reason for fighting. While visiting Gouken's grave, Ryu meets his old friend, Ken. They are both approached by a young boy named Shun, who claims that he is Ryu's long-lost brother. According to Shun, their mother raised Shun in Brazil until her recent death, and she sent Shun to find Ryu before she died. Ken is skeptical, but Ryu decides to take Shun in and notices the boy's potential as a fighter. One night Ryu succumbs to the Dark Hadou nearly killing Ken. Ken punches him in the stomach. Ryu then returns to normal. Later that night Ken talks to Ryu about his Dark Hadou. Ryu instructs Ken to kill him if he's ever completely possessed by the Dark Hadou. Ken is reluctant at first, but then agrees.

Ken and Shun decide to enter an underground fighting tournament, but Ryu declines. On the way, they are harassed by some street thugs. Ryu and Shun fight them off effortlessly, but Ryu also notices a rather violent and sadistic streak in Shun, whom he has to punch to stop him killing one of the thugs. Ken, meanwhile, finds Sakura in a bar and agrees to take her to Ryu, although he is too late to enter the tournament, much to his chagrin. Inside the building, Ryu is found by Chun-Li, who managed to locate him. In the tournament, watched by its enigmatic organiser, Dr. Sadler, Shun is pitted against the brutal wrestler, Zangief. Shun briefly manages to pummel Zangief with his superior speed, but the Dark Hadou catches up with Shun, distracting him long enough to receive a brutal beating from Zangief. Ryu steps in and briefly fights Zangief, but he too is overcome by the Dark Hadou and he almost kills Zangief with a Dark Hadouken, which misses Zangief but causes the building to start collapsing. As Ken takes an injured Sakura to safety, Ryu is confronted by a huge man, Rosanov, who proves to be more than a match for both Ryu and Chun-Li combined. Just as Rosanov prepares to knock Ryu unconscious, Shun steps in and takes the blast. Ryu succumbs to his rage and obliterates Rosanov with a Shinku Hadouken. However, while Ryu is distracted, Shun is abducted by Shadaloo agents.