Kazuki Takahashi, creator of the hit TV series "Yu-Gi-Oh," and eventual inspiration for the trading card game, has passed away in Japan, according to the country's Coast Guard.
He was 60.
A spokesman told the New York Times that Takahashi -- who had been traveling alone while vacationing -- died from unknown causes while snorkeling.
His body was found Wednesday floating off the coast of Nago -- a city on Okinawa Island in Southern Japan -- the spokesman said.
The Coast Guard are investigating his death.