Yokohama Arena  As one of the largest concert venues in the Kantō region, it is a frequent location for artists to end their tours. The spacious stage allows for more complex set design and lighting, but the reasonable size makes it easier to sell out than the Tokyo Dome. The Yokohama Arena was opened on April 1, 1989. At the exact day was held the opening celebration concert where performed renowned Japanese singer-songwriter Yumi Matsutoya, and the three upcoming days were additional dates of her concert tour. Many notable Japanese music acts performed at the arena, alphabetically: AKB48, Namie Amuro, Aqours, B'z, Babymetal, Buck-Tick, °C-ute, Gackt, The Gazette, Glay, Guns N' Roses,  Ayumi Hamasaki, Hide, Ikimono-gakari, L'Arc-en-Ciel, LiSA, Luna Sea, Misia, Nana Mizuki, NICO Touches the Walls, Momoiro Clover Z, Morning Musume, Mr. Children, One Ok Rock, Ai Otsuka, Silent Siren, Southern All Stars, Hikaru Utada, X Japan, as well humanoid projection Hatsune Miku. International artists also performed there, like JKT48, Mariah Carey, Paula Abdul, Whitney Houston, Bobby Brown , Steve Winwood, Frank Sinatra, Super Junior, Girls' Generation, Shinee, Big Bang, Beast/Highlight Kara, 2NE1, TVXQ, F.T. Island, CNBlue, Junho (2PM), f(x) (band), BTS, iKon, Seventeen, Exo-CBX, Twice and Red Velvet. The venue also held the annual Nano-Mugen Festival from 2005 until 2014, a rock festival organized by Asian Kung-Fu Generation. Besides music events, there was held a martial arts competition, K-1 World Grand Prix Final in 2008. After the 2011 Tōhoku earthquake and resulting tsunami, Yokohama played host as an emergency shelter for those affected by the earthquake and tsunami. Citizens were allowed the stay the night, and were offered blankets and other amenities. Hideharu Terada, a Yokohama Arena official stated "There has never been a big earthquake like this. People are trickling in. They are all calm." Yokohama Arena is one of the venues featured in the manga and anime series "Hajime no Ippo".