In Episode 6 of "My Hero Academia," the heroes manage to bypass All for One's lie detector Quirk. All Might visits Midoriya and his classmates to explain the plan for combating the villains. Hitoshi Shinso uses his enhanced brainwashing ability to control Aoyama and his parents, allowing them to communicate without lying so All for One doesn't notice.

Neito Monoma's Copy Quirk is used to replicate Kurogiri's Warp Gate, enabling the heroes to transport themselves. During the ongoing battle, the heroes appear through Monoma's Warp Gates and are immediately attacked by the villains. They isolate the villains in blocks and transport them through the gates. Midoriya, who is facing Shigaraki, is suddenly pulled away by Himiko through another gate.

Shigaraki is transported to a floating U.A. High School with an electromagnetic barrier. Bakugo informs Best Jeanist about Midoriya's absence. Despite Shigaraki's decay ability, the blocks float and disappear, as Best Jeanist explains. The floating U.A., called Coffin in the Sky, was specifically designed for the fight against Shigaraki and is controlled by drone technology monitored by Cementoss and Yaoyorozu.

The barrier is powered by students generating electricity from another floating workstation. This setup was developed by the 16-year-old Hatsume. Shigaraki struggles to use his powers as Eraser Head and Monoma hinder him. Eraser Head, who has lost an eye, relies on Monoma, who continuously copies his Quirk.

Rabbit Hero Mirko charges at Shigaraki, convinced they can defeat him. However, Shigaraki's body suddenly changes, sprouting multiple hands and countering Mirko.