 Since then Hakuhō, who regarded Taihō as a mentor, surpassed his record by winning his 33rd championship in January 2015.Kōki was born on the island of Sakhalin (Karafuto Prefecture) to a Japanese mother Kiyo Naya and an ethnic Ukrainian father Markiyan Boryshko who had fled the Bolshevik Revolution.However, he is regarded as having come from Teshikaga, Hokkaidō, where he moved to as a child after the Soviet Union took control of Sakhalin in 1945.