Nine

Known as Nine is one of two members of the Sphinx terrorist group. He grew up in an experimental institution for gifted children with Twelvehttps://anilist.co/character/88096/Twelve though the both of them managed to escape. Later on both Nine and Twelve carry out several terroristic acts in Japan. He is reserved calm and collected and very very intelligent. Nine is efficient in many fields up to exceptional computing and hacking. Hes an impeccable strategist with a knack for chess and classical literature. Good with disguises. Source: MyAnimeList