I Do What I Can is the fifty-first chapter of Hideyuki Furuhashi and Betten Court's Vigilante - My Hero Academia: Illegals.
In the Tokyo Sky Egg dome, both the heroes and the audience are wondering about the many tremors rocking the dome. Some try to use their communication devices to contact the outside or other departments to know what is happening, but one of the two remaining Bombers generates an EMP blast, causing a blackout in the building and cutting the cell signals. In the distance, Number 6 is satisfied with the result, because it prevents anyone from helping Captain Celebrity.
In one of the rooms of the Sky Egg, the heroes and show staff discuss the situation. Since all electronic devices have been rendered useless and they are completely isolated from the outside, Best Jeanist deduces that everything that is happening is the result of a meticulous plan drawn up by some villain or organization that seeks to seal them all in the building. He decides that the best option is for the show staff and a group of heroes to look after the civilians without telling them the truth about what is happening to avoid panic. Meanwhile, another group of heroes will go to a small access hatch at the top of the dome where those heroes capable of flight will exit and make contact with the outside.
Meanwhile, Captain Celebrity continues to hold the damaged structure so that it does not fall, while resisting the Bomber's attacks. He is determined to endure as many of the creature’s explosive punches as he can, figuring there is a limit to its regeneration. When the Bomber prepares to attack him again, a projectile causes one of the Bomber's fists to explode. At that moment, Koichi Haimawari appears upside down, using his Quirk to attach his feet to the roof of the dome.
The American hero tells him to leave, but Koichi refuses, since his projectiles can destroy the Bomber's fists before they get close. Koichi decides to unleash a new super move, The Crawler's Shooty-Go-Blam-Blam-Blam-Blam-Blam, firing a continuous burst of repulsion force blasts, hitting the Bomber and blowing up his fists.
Captain Celebrity realizes that those attacks can help them buy time, but they are not powerful enough to bring the Bomber down. Koichi is unconcerned, since he can keep the explosions away until a proper hero can reach them. Koichi realizes that it's always been his strategy to fight criminals and villains to do what he can and buy time until someone much more competent appears to solve the problem. Captain Celebrity says that strategy is uncool, but the only option available, so he asks Koichi to hang in there.