Human Alastor X Arcane Crossover: The Radio Demon And Jinx

Shortly after Vander took in Vi and Powder, he found a boy Powder's age named Alastor and took him in. Even though Vander took him in, he, Vi, Mylo, and Claggor felt that there was Something off about the boy. It didn't help that Alastor would smile a majority of the time, even in serious moments, laugh like a lunatic when others are in pain, and make casual comments about killing someone. Vi would try to keep Alastor from Powder, but despite her best efforts, the two kids formed a strong bond. When everything goes wrong and Vander, Mylo, and Claggor die, the two kids get taken in by Silco.

Years later, Powder became Jinx, and Alastor became known as the Radio Demon became he'd terrorize people simply by talking through the radio and would kill their enemies in sadistic ways. What happens when Vi returns, searching for the two?