Complete Monster: Horie Takayuki is the murder victim of the Psychic Murder arc, but it is quickly revealed that Horie was more than deserving of the death blow he was dealt. Years ago, Horie created the National Talent Development to obtain government money for himself, and would take in young children and put them through experiments to test their capacity for psychic abilities, horribly beating them if they fell short of expectations. In truth, he was using the Center just to have children at his disposal for him to molest and act out his depraved urges on, Horie eventually murdered one of the children in his care and killed his partner to keep the death silent. Horie gets away with his crimes for years, hurting countless children and taking smug satisfaction in his acts.
King Hades, real name Hoshiko Kokuo, is the final villain DDS Q-Class faces in the story, and the true mastermind behind the team's common foes. A brilliant mind since birth, Hades' abusive, despairing childhood lead him to create the criminal organization Pluto. Pluto is designed by Hades to be a helpful group to aspiring murderers, offering to craft a perfect murder scheme for their clients to pull off and get away with it all, though at a high price and with the caveat that no member of Pluto can personally commit a murder for the client. Recruiting creative minds to Pluto to continue its expansion and pulling off countless murder schemes that go off without a hitch, Hades, seeking to make his grandson Ryu his heir, orchestrates a decade-long plan to turn Ryu into a perfect successor, even allowing the boy to ally with Pluto's enemy DDS as one of the steps. Hades personally manipulates four people into killing each other one after the other, frames Ryu for the crimes, and nearly kills all of Q-Class, calmly accepting his defeat when they outsmart him and even returning Ryu's lost father to him as a last kind act before vanishing forever.
Cerberus/Kerberos is the single most dangerous operative of Pluto, serving King Hades loyally while taking a playful enjoyment in his clashes with DDS Q-Class. An inventive and exceptional hypnotist and Master of Disguise, Cerberus fools Q-Class several times over with his art of imitation and disguises, and uses his hypnotism to silence any potential leaks to Pluto. Completely outsmarting Q-Class in his first appearance, Cerberus is captured later when Dan Morihiko personally leads the charge, however Cerberus politely spends his time in prison chatting with his guards and even recommending literature. Pulling off an intense, complex escape scheme through a combo of hypnotism and ingenuity, Cerberus later honors his master Hades in saving Ryu's life and helping the boy find his lost father, after which Cerberus departs to kickstart his own criminal aspirations. Ever gracious, affable and respectful to even his worst enemies, Cerberus stood in stark contrast to his fellow Pluto operatives' smug, cruel personalities.
Shocking Moments: The conclusion for the last case is filled with this. The last case is not a serial murder but four separate murders committed by all the victims? The four victims were manipulated into harboring hatred with each other by Pluto? They are merely one of King Hades's pawn in making sure Ryu becomes evil and King Hades's successor? The plan for it had been set in motion for 9 whole years, meaning every little steps Q-Class made are within King Hades's calculation?! Holy shit!
