Takanonami Sadahiro (born Sadahiro Namioka October 27, 1971 – June 20, 2015) was a Japanese sumo wrestler and coach from Aomori.
 He held sumo's second highest rank of "ōzeki" from 1994 until 2000.
 He won two tournament championships, and was a runner-up in eight others.
 He was a sumo coach from his retirement in 2004 until his death in 2015 at the age of 43.
Endō Shōta (遠藤 聖大 ) , (born October 19, 1990) is a professional sumo wrestler from Ishikawa Prefecture, Japan.
 After a successful amateur career, he turned professional in March 2013, making the top "makuuchi" division that September.
 His highest rank has been "maegashira" 1, and he has two special prizes for Fighting Spirit and Technique, and three gold stars for defeating "yokozuna."
 He was runner-up in the September 2016 tournament.
 He wrestles for Oitekaze stable.
 He is extremely popular with Japanese sumo fans and has been regarded as one of the most promising home-grown wrestlers in sumo.
Akebono Tarō (曙 太郎 , Akebono Tarō , born Chadwick Haheo Rowan; 8 May 1969) is an American-born Japanese professional wrestler and former sumo wrestler from Waimānalo, Hawaii.
 Joining the professional sport in Japan in 1988, he was trained by pioneering Hawaiian sumo wrestler Takamiyama and rose swiftly up the rankings, reaching the top division in 1990.
 After two consecutive "yusho" or tournament championships in November 1992 and January 1993 he made history by becoming the first non-Japanese-born wrestler ever to reach "yokozuna", the highest rank in sumo.
Aminishiki Ryūji (born October 3, 1978 as Ryūji Suginomori) is a Japanese sumo wrestler.
 He made his professional debut in 1997 and reached the top "makuuchi" division in 2000.
 He has earned eleven special prizes and won eight "kinboshi" or gold stars for defeating "yokozuna" during his career, which for some time was twice as many as any other active wrestler.
 He has twice been runner-up in a tournament.
 The highest rank he has reached is "sekiwake".
 He is in the all-time top ten for a number of sumo records, including most top division wins, most top division appearances and most tournaments ranked in the top division.
 He wrestles for Isegahama stable.
Kotoōshū Katsunori (琴欧洲 勝紀) (legal name: Karoyan Andō, born February 19, 1983 as Kaloyan Stefanov Mahlyanov, Bulgarian: Калоян Стефанов Махлянов , in Dzhulyunitsa, Veliko Tarnovo Province, Bulgaria) is a former professional sumo wrestler or "rikishi".
 He made his debut in 2002, reaching the top division just two years later.
 In 2005 he reached the rank of "ōzeki" or 'champion', the second-highest level in the sumo ranking system behind only "yokozuna."
 On May 24, 2008, Kotoōshū made history by becoming the first European sumo wrestler to win an Emperor's Cup.
 He was one of the longest serving "ōzeki" in sumo history, holding the rank for 47 consecutive tournaments until November 2013.
 In January 2014 Kotoōshū obtained Japanese citizenship, a requirement of becoming an elder in the Japan Sumo Association, and he announced his retirement during the following tournament in March.
 In April 2017 he opened his own training stable, Naruto.
Jōkōryū Takayuki (born August 7, 1988 as Takayuki Sakuma), formerly known as Sakumayama Takayuki, is a Japanese sumo wrestler.
 He made his professional debut in 2011 after a successful college career in sumo.
 He currently holds the record for the most consecutive wins since entering professional sumo, and for the fastest rise to the top "makuuchi" division from the lowest "jonokuchi" division.
 His highest rank has been "komusubi", which he reached in September 2014.
 However, because of injuries he has fallen down the rankings, reaching a low of "sandanme" 23 in November 2016.
Ryūichi Yamamoto (山本 龍一 , Yamamoto Ryūichi , born May 8, 1984) , known by his "shikona" Yamamotoyama Ryūta (山本山 龍太 ) , or simply Yama, is a Japanese retired sumo wrestler from the city of Saitama in Saitama Prefecture.
 He made his professional debut in January 2007, and reached the top "makuuchi" division in January 2009.
 His highest rank was "maegashira" 9.
 At 265 kg , Yamamotoyama is the heaviest Japanese-born sumo wrestler in history, and is also thought to be the heaviest Japanese person ever.
 In April 2011, he was told to retire by the Japan Sumo Association after he and several other wrestlers were found to be involved in match-fixing.
 He now lives in Los Angeles and participates in sumo exhibitions and amateur tournaments, often alongside Ulambayaryn Byambajav.
Invasion Attack was a professional wrestling pay-per-view (PPV) promoted by New Japan Pro-Wrestling (NJPW).
 The event took place on April 7, 2013, in Tokyo at Ryōgoku Kokugikan.
 The event featured nine matches, five of which were contested for championships.
 As part of the "invasion" theme, the event featured title matches involving championships from Consejo Mundial de Lucha Libre (CMLL) and the National Wrestling Alliance (NWA) as well as participation from outside workers Akebono and Bob Sapp.
 It was the first event under the Invasion Attack name.
Kasugafuji Akihiro (February 20, 1966 – March 9, 2017), born as Shoki Iwanaga, was a Japanese sumo wrestler and coach from Oshika, Miyagi.
 He was an active wrestler in professional sumo from 1981 until 1996, reaching a highest rank of "maegashira" 1.
 After his retirement he re-established the Kasugayama stable in 1997 and trained his own wrestlers.
 He left the Japan Sumo Association in 2012 after an expenses scandal, and was involved with a legal dispute in 2013 with his successor as head of Kasugayama stable which was not resolved until shortly before his death in 2017.
Kaiketsu Masateru (Japanese: 魁傑 將晃, born Teruyuki Nishimori; February 16, 1948 – May 18, 2014) was a Japanese sumo wrestler, who reached the second highest rank of "ōzeki" on two separate occasions.
 He also won two top division tournament championships.
 After his retirement in 1979 he became a coach under the name of Hanaregoma-oyakata and established Hanaregoma stable.
 He was also chairman of the Japan Sumo Association from 2010 to 2012.

Question: Invasion Attack included title matches by the Japanese sumo wrestler from what Hawaiian city?
Answer: Waimānalo