Everwraith from slaughtering millions in downtown Tokyo. During the battle, Big Hero 6 is joined by Sunfire, Japan's premier superhero, who is a mutant with the ability to heat matter into plasma. Sunfire becomes instrumental in the Everwraith's defeat. Soon afterwards, Big Hero 6 moves their headquarters from the Giri office building to Japan's Cool World Amusement Park. Here they are attacked by X the Unknowable, a monster born from a child's drawings who is capable of transforming its atomic structure into any form and shape. With the help of the Canadian superhero team, Alpha Flight, Big Hero 6 destroys X the Unknowable in the fires of Mount Fuji. Afterwards, Big Hero 6 continues to protect Japan from various threats such as a freak blizzard caused by the Crimson Cowl and her Masters of Evil. Eventually, Sunfire leaves Big Hero 6 so that he can work at Charles Xavier's X-Corporation office in Mumbai, India. His spot on the team is filled by Sunpyre, a young woman with similar solar-based powers who is pulled into this reality through the Power Purse and therefore comes to idolize Honey Lemon. Similarly, after Silver Samurai is seemingly slain in an altercation with the assassin Elektra in Iraq, his spot on the team is filled by the enigmatic Ebon Samurai. With the two most experienced members of Big Hero 6 gone, Hiro becomes the team's new leader. Sometime during the team's operation, they are attacked by minions of Yandroth. As part of a plan to gain power via superhero battles, Yandroth sends a team of "Living Erasers" into their building. The Living Erasers are capable of transporting beings out of reality. The entire battle takes place off panel and is only mentioned in conjunction with attacks upon other superhero teams. Later, the members of Big Hero 6 fall victim to a mind-control device implanted within Baymax. Traveling to Canada, the mind-controlled superheroes attack a new incarnation of Alpha Flight at a national park. After a brief battle, the mind-control device is short-circuited and the two teams part as friends. Big Hero 6 returns to Japan to seek out the parties responsible for their mind control. During the "Ends of the Earth" storyline, Spider-Man calls upon Big Hero 6 to help him defeat Doctor Octopus. The team, now operating from the Giri Institute, confront Doctor Octopus' Octobots, which Dr. Octopus had sent to Japan. They subsequently