Japan sumo - Lafforgue

Sumo (相撲, sumō^?) is a competitive full-contact sport where a wrestler (rikishi) attempts to force another wrestler out of a circular ring (dohyō) or to touch the ground with anything other than the soles of the feet. The sport originated in Japan, the only country where it is practiced professionally. It is generally considered to be a gendai budō (a modern Japanese martial art), though this definition is incorrect as the sport has a history spanning many centuries. Many ancient traditions have been preserved in sumo, and even today the sport includes many ritual elements, such as the use of salt purification, from the days when sumo was used in the Shinto religion. Life as a rikishi is highly regimented, with rules laid down by the Sumo Association. Most sumo wrestlers are required to live in communal "sumo training stables" known in Japanese as heya where all aspects of their daily lives—from meals to their manner of dress—are dictated by strict tradition.

The foot (plural feet) is an anatomical structure found in many vertebrates. It is the terminal portion of a limb which bears weight and allows locomotion. In many animals with feet, the foot is a separate organ at the terminal part of the leg made up of one or more segments or bones, generally including claws or nails.

Ryōgoku Kokugikan (両国国技館, Ryōgoku Kokugi-kan^?), also known as Sumo Hall, is an indoor sporting arena located in the Yokoami neighborhood (bordering to the Ryōgoku neighborhood) of Sumida, one of the 23 wards of Tokyo in Japan, next to the Edo-Tokyo Museum. It is the third building built in Tokyo associated with the name kokugikan. The current building was opened in 1985 and has a capacity of 13,000 people. It is mainly used for sumo wrestling tournaments (honbasho) and hosts the hatsu (new year) basho in January, the natsu (summer) basho in May, and the aki (autumn) basho in September. It also houses a museum about sumo. The venue is also used for other indoor events, such as boxing, pro wrestling, and music concerts. In past years, it has hosted the G-1 Climax, an annual tournament in New Japan Pro Wrestling.