Ryu is very intelligent, and his dark background somehow links him to the organization known as Pluto. When his parents died, Pluto took care of him. As a child he was never allowed to socialize with others. He often viewed his house as more of a prison than a home. Even with his cold personality he is still friendly with the other members of Class Q, and shares a special link with Kyuu since he was the first one who could understand him.

Kyuu is your average boy with a knack for logic and reasoning. Desiring to become a detective, he finds out about the existence of the Dan Detective School (DDS); a famed school where students are allowed to bear arms. Together with Megu, a girl with photographic memory, the martial arts master Kinta, the genius programmer Kazuma and the mysterious Ryuu, Kyuu tackles many well planned out crimes, always seeking the truth.

Detective School Q is the story of a group of young students from Class Q of Dan Detective School (DDS), a prestigious and renowned detective academy founded by Morihiko Dan, the most famous detective in Japan, and the adventures and mysteries they unfold and solve together. They eventually work against Pluto, a mysterious organization which creates almost fool-proof plans that only a handful of detectives can solve.<br><br>
The story was written under the penname Amagi, Seimaru.<br><br>
(Source: Wikipedia)

A sequel set two years after the events in Tantei Gakuen Q and the fall of the murder-planning syndicate Pluto, the story follows the students of Class Q under the new Principal Nanami as they solve mysteries, trying to live up to the legacy of the legendary detective who started their Detective School. But is Pluto truly gone, and what became of Cerberus, the high-ranking official who escaped two years ago?

Ryuu Amakusa