Kazuki Takahashi, the creator of “Yu-Gi-Oh!”, was been found dead after a snorkeling trip in Okinawa Prefecture, according to a coast guard official Thursday.

A body that turned out to be the 60 year old was found off the coast on Wednesday. He was wearing a T-shirt and an underwater mask, snorkel and fins.

Media outlets, including NHK, said Takahashi was found around 300 meters offshore and pulled from the water. According to TBS, Takahashi was traveling in Okinawa alone. The channel also said that a car rental company contacted police on Wednesday night saying it could not reach him, prompting the coast guard to suspect the body was his.

“Yu-Gi-Oh!” ran in “Shonen Jump” between 1996 and 2004. It told the story of Yugi, a teenager who receives an ancient puzzle that awakens in him the alter ego of an Egyptian pharaoh. The manga gave rise to a media franchise which included a trading card game, an anime series, and films.

In 2011, “Yu-Gi-Oh!” was recognized by Guinness World Records as the world’s best-selling trading card gam,, having sold more than 25.17 billion sets around the world, according to Kyodo News.

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