Shadowbrokers are those who go unnoticed, posing as unremarkable people, when in truth, they control everything from behind the scenes. Sid wants to be someone just like that more than anything, and something as insignificant as boring reality isn’t going to get in his way! He trains in secret every single night, preparing for his eventual rise to power—only to denied his destiny by a run-of-the-mill (yet deadly) traffic accident. But when he wakes up in a another world and suddenly finds himself at the head of an actual secret organization doing battle with evil in the shadows, he’ll finally get a chance to act out all of his delusional fantasies!

The “Abyss” is the last unexplored region, an enormous and treacherous cave system filled with ancient relics and strange creatures. Only the bravest of adventurers can traverse its depths, earning them the nickname, “Cave Raiders.” Within the depths of the Abyss, a girl named Riko stumbles upon a robot who looks like a young boy. Tantalized by the Abyss, Riko and her new friend descend into uncharted territory to unlock its mysteries, but what lies in wait for them in the darkness?