When the foul-tempered Princess Alexia is captured by the Cult of Diablos, the Shadow Garden takes the stage, assaulting the cult's hidden base. Crossing swords with the kidnapper, Cid gets the chance to make his true debut as an eminence in shadow (and show off his totally awesome secret technique). As the attack lights up the night sky over the capital, all will know of the hidden powers that lurk in the darkness!

Cid Kagenou has his eyes set on becoming a hidden mastermind working in the shadows, but when he is involved in a deadly traffic accident he wakes up in another world and finds himself at the head of an actual secret organization doing battle with evil in the shadows.