Deadly friendship

A hero and a villain meet, and the hero realises how corrupt the hero world is, and becomes an antihero.
To the world they are the deadliest duo, the worst villains in the world. Chased by the special forces to catch them, but what if there's a mole? What if there was something threatening the human race? Will everyone get past their grudges, and work together in order to save the world?

-Modern World, Mafia, supernatural powers

TW:
Murder/ death
Swearing
Angst
Betrayal