While chaos reigned both inside and outside Academy City, three girls—Little Annie, Mikoto Misaka, and Kuroko Shirai—had been fighting in the Anti-Academy City Alliance's secret base. They defeated a certain former strongest Level 5 esper from Academy City by creatively wielding the ultimate humanoid weapon, the True Spear of Kamijou Touma. After defeating Accelerator, who had activated his "Invincible" and "100% Damage Reflection" buff auras, and saving Academy City and the entire world, they immediately rushed back to the base at top speed, leaving the mess outside—the city still beset by the last remnants of the storm—to others to deal with.
They had to come back...
After all, they were still wanted by Academy City as "terrorists" and "dangerous esper suspects." It didn't matter that they'd just done something incredibly heroic, defeated Accelerator when he'd tried to destroy the world, and saved the two million three hundred thousand people of Academy City—and possibly even more—from him. Apart from the girls themselves, hardly anyone knew what had happened!
So now they had no choice but to scurry back to their base and hide. Unless they wanted someone to spot them and, before they knew it, riddle them with bullets?
Besides, there was another reason they had to return: they'd unexpectedly acquired two critically injured patients. They needed to get back immediately so their in-house doctor, the high-and-mighty angel, Saten Ruiko, could give them the most professional, luxurious, and effective treatment possible.
But the result was something Mikoto and the others hadn't expected at all. They'd never imagined that something so completely beyond their expectations would happen.
"Ah..."
"That can't be right. How strange..."
As Angel Ruiko once again tried to use her supposedly "heavenly" power of holy healing on the young man lying in bed, who looked to be at death's