Investigator Arima

Investigator Arima was one of the leaders of the CCG. He trained alongside at the CCG Preparatory Academy, Arima passed his tests and became an important part in overseeing the beginning of the Project Destroyer of Worlds, which in turn led to the creation of the new soldiers for the CCG including Gaara of the Desert. Having become a sleeper agent within M.O.N., Arima recruited for the CCG's cause those who became unsatisfied with the way the agency was led, while also raising his son whom he deemed to be a disappointment to their cause and not a suitable leader.

In the aftermath of the Battle of Amestria, Arima's CCG cell secretly took possession of a Dragon Ball which was confiscated by M.O.N.. Over the next two years, Arima and his deputy used the Dragon Ball's powers to experiment on many human and otherwise volunteers in the CCG's Hellawes base, aiming to create an army of enhanced people who would serve the CCG. Around the time of the Battle at the Phantomhive Manor, Arima deserted M.O.N., but as the continuing War on the CCG raged, he eventually became one of the last few surviving heads of the CCG. His base of operations was discovered and attacked by the Jump Force, leading to his capture before he was murdered in his cell by Father, which effectively reduced the CCG to just a few disorganized cells.