History
The nephew of the supervillain Tinkerer, Kevin Schumer would often visit places where superhuman battles had taken place to steal tech for his uncle. In return, he'd be paid a small fee[2] and given some tech to run KSHOOM, a service for tourists that offered tours around New York and the chance to see superheroes in action.[1]
After raiding a building in Little Sin-Cong, Kevin found himself chased by monsters and had to be saved by Spider-Man. After other heroes joined the battle, the monsters were banished to the Dark Dimension by Doctor Strange, and Kevin was brought to the Stark Unlimited Campus to be interrogated about the monsters. At first he was in awe with what was happening to him, but upon realizing it was "fate-of-the-world stuff", he tried to sneak out with Black Cat, who was also there for interrogation. As they were about to leave, the mysterious Ace appeared and told the other heroes it was important they take the duo with them to Siancong. Before they could ask more questions, however, he disappeared without a trace. Still feeling way out of his league, Kevin was conforted by Black Cat, who told him she'd make sure he'd survive.[3]
Alongside the gathered heroes, Kevin was thus teleported inside a black dome surrounding Siancong to help fight Lady Lotus, who was thought to be behind all this.[4] He was often overwhelmed by the experience, but in the end it was his actions that saved the whole world as he used one of Porcupine's sedative quills to knock out Lotus.[5]