Karen Nun-Ira
Her mother is Japanese and a feng shui master, while her father is Ghanaian. She started judo at the age of 14. In 2010, she entered International Pacific University and was trained by former Olympic and world champion Toshihiko Koga. In 2014, she belonged to Ryotokuji Gakuen after graduating from the university. She won the silver medal in the middleweight (70 kg) division at the 2014 World Judo Championships.