Dejima Takeharu is a former sumo wrestler from Kanazawa, Ishikawa, Japan. A former amateur champion, he made his professional debut in 1996, reaching the top makuuchi division the following year. In July 1999 he won the yūshō or tournament championship and earned promotion to the second highest rank of ōzeki. He lost the rank in 2001 and, for the most part, remained a maegashira until his retirement in 2009. He won ten special prizes and six gold stars over his long career. He wrestled for Musashigawa stable. He is now an elder of the Japan Sumo Association under the name Ōnaruto Oyakata.

Kanazawa is the capital of Ishikawa Prefecture in central Japan. As of 1 January 2018, the city had an estimated population of 466,029 in 203,271 households, and a population density of 990 persons per km2. The total area of the city was 468.64 square kilometres (180.94 sq mi).