History
Raki was one of the handful of Wakandans abducted by the Atlantean scientist U-Man and General Zoruun of the Nigandan Army during a period of roughly a decade to perform studies on them. Due to the strange nature of their disappearance, then-King S'Yan decided to keep the incidents a secret from the public to avoid panic.
When T'Challa succeeded S'Yan, he learned of these incidents and acted on them. He eventually located the base of the kidnappers in Niganda and shut down their operations with the help of the Atlantean king Namor. Raki and the other abductees were then brought back to Wakanda.[1]