Who won the men's single figure skating two consecutive championships in PyeongChang Winter Olympics in Sochi?

Yuzuru Hanyu. According to the inquiry of Sochi Winter Olympics and Pyeongchang Winter Olympics, the winner of two consecutive men's singles figure skating championships in Sochi and Pyeongchang Winter Olympics is Yuzuru Hanyu, achieving a grand slam. Yuzuru Hanyu is a Japanese figure skater. After winning the Winter Olympics in Sochi, she became the first Asian champion in men's single skating and the first person in the history of super grand slam figure skating.