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The official music video for 86: Eighty-Six - Part II's opening theme song Kyoukaisen, performed by amazarashi.
Destroy ideals (you) and return to reality (hell)..." A beautiful song echoes throughout the city. A city is overseen by the popular virtual idol group "μ", every day was filled with peace and serenity. Ritsu Shikishima is a freshman at Miyabi city Kishimai High School. With good grades and athletic skills, he was spending a fulfilling high school life surrounded by many of his friends. Time has passed and on the first day of his second year, the one who stepped up to the podium as the class representative was someone who was not supposed to be there...
A mysterious black cloud kicks Haruyuki and his friends out of the online fighting game Brain Burst. Unable to reenter, they discover that this isn’t just an isolated incident—the cloud is spreading and preventing all Burst Linkers from accelerating. Haruyuki and the others soon learn that, to protect the bond that connects them, they must confront a powerful ancient being that has been sealed away since the dawn of the Accelerated World!
The Black Legion members are enjoying a rare opportunity to relax – that is, everyone except for Kuroyukihime. Lately the Black King has become more and more concerned with Haruyuki's unexpected aloofness, and what's worse, she and the gang soon discover that someone in the school network is assaulting students' online avatars and stealing their accessories. Can the Black Legion expose the troublemaker, and will Kuroyukihime be able to resolve her relationship with Haruyuki?
Then, with the help of his friends, Haruyuki must find a way to drop some weight fast or be forced to take the school health improvement program - which means losing his chance to participate in important Accel World territory battles. On Sky Raker's proposal, everyone goes to a special mixed-gender hot spring to help him get healthier, but Kuroyukihime begins to feel uneasy towards Haruyuki getting slimmer...
The protagonist, Riku Suigin is a pro-level gamer. The heroine, Riku Rei, knows of this and is the most beautiful girl in school and also loves video games. Suigin receives a device to play a net game called “Grave Buster” from Rei, but Rei is suddenly kidnapped. When Rei puts his hand on the device, he’s sucked into the world of the game. And in that world, a battle between the tomb raiders and tomb protectors for the tomb of the mother goddess Bango’s tomb has been going on for 1000 years.
Takashi Katori is a big fan of online games, and so is his American friend Sarah. However, one of their RPGs goes too far, as their virtual world and the Lezarion robot that Takashi created for the game somehow mix with reality. Takashi is caught, but later the Earth Governement discovers that an evil scientist from the Moon (now a sort of abandoned colony with restricted access) is hacking into virtual worlds and security, so they force Takashi to pilot the Lezarion and, with Sarah's help, fight evil and protect the Earth.