The five-time world champion, who helped South Korea achieve Olympic team gold at Tokyo 2020, overcame Georgia’s Sandro Bazadze 15-14 to seal the title at the SK Handball Gym in his home country.

After seeing off fellow countryman Kim Jae-won in the opening round, Oh was roared to victory by the South Korean fans.

He beat Italian duo Pietro Torre and Luigi Samele and France’s Eliott Bibi before taking down three-time Olympic champion Áron Szilágyi of Hungary to secure a place in the final where he edged Bazadze.

Szilágyi had to settle for a bronze medal, along with Italy’s Matteo Neri.

Greece’s Theodora Gkountoura emerged victorious from the women’s event, defeating France’s Sara Balzer 15-11 in the final.

The tournament also saw the Greek fencer beat Spain’s Ainhoa Perez, Italy’s Chiara Mormile, Poland’s Zuzanna Cieslar, Azerbaijan’s Anna Bashta and Japan’s Misaki Emura.

The bronze medals went to reigning world champion Emura and Ukraine’s four-time Olympic medallist Olga Kharlan following their runs to the semi-final.

The event was due to be the first featuring Russian and Belarusian fencers since the FIE approved their return last month.

Ilgar Mammadov, head of the Russian Fencing Federation, claimed that "bureaucratic delays" had led his athletes from being denied the chance to compete.

He had also called for the Olympic qualification points to be stripped from the tournament due to their omission.