Dr. Kekeru Goyu is a doctor in the Yu-Gi-Oh! first series anime. He does not properly take care of Shizuka, Katsuya Jonouchi's sister, and instead focuses on playing golf and scheduling meetings with his friends to play.

The doctor had fired Nurse Miyuki, who had slapped him for his neglect for Shizuka, in addition to countless other patients, who had all ended up dying.

Jonouchi is forced to keep quiet because if he goes public about it, then Shizuka would be kicked out of the hospital, leaving him grief-stricken.

Faced with Jonouchi crying, Yugi is shocked and as such, Dark Yugi emerges, heading for the hospital where he confronts Goyu with evidence of his corruption and negligence, and defeats him in a putt-putt game within the hospital.

As his penalty, Goyu is haunted by visions of the vengeful ghosts of his dead patients. Driven insane, Goyu laughs maniacally, admits to the rest of the staff that he cares more for golf than his patients, and is fired.