Haido had bought the Book of Gelel from a merchant overseas, and used it to look for the Gelel vein for powers to rule the world, which led him and his knights to where the vein rests. He and his subordinates, Fugai, Kamira, and Ranke, attacked Temujin's village (although Temujin didn't know about it at the time). The reason Haido attacked Temujin's village was to obtain the stone of Gelel, which he believed was in Temujin's village. He killed everyone in the village, including Temujin's parents. When he found Temujin, however, he saw potential in the boy and took him as his underling. Haido trained Temujin to become his minion and help him to find the Vein of Gelel.
Fujimaru's father works for the Public Security Intelligence Agency under its secret Third Division, aka Third-I, as its Vice Director. He was framed for the murder of Director Okita, and was on the run for some time as he sought to unravel the mysteries of "Bloody Monday." He is eventually found innocent, though he suffers several injuries during the series. In the second season, Ryūnosuke has gone undercover in a cult group he had infiltrated eight years ago in order to prevent a terrorist attack which has the potential to dwarf the "Bloody Monday" threat. He dies in Season 2 while trying to slow down the terrorists. He was a double agent and was known as 'Beast' among the terrorists led by Alexei (the shooter of the magic bullet). (Source: Wikipedia)
She is a friend of Sawako's from back when they were in high school, and they were both in the light music club together as part of the band Death Devil. She and Sawako used to try to outdo each other on the guitar. Her stage name is Christina.
Horigome is the classical literature teacher at Sakuragaoka High School, where he has taught for a long time. He was the supervisor of the school's light music club when the members were a band known as Death Devil. He considered the club too wild at the time, experiencing many problems and frequently scolding the members. He continues to teach, but is no longer the club advisor.
A third year and the President of the Newspaper Club. He is Fujimaru's childhood friend. He is also, Fujimaru's "back up." He was the only one that knew about Fujimaru's supreme hacking skills, and was the one that told the Newspaper Club (with Fujimaru's permission) about the Takagis' work. Later, it was revealed that he likes Fujimaru's younger sister, Haruka. (source: Wikipedia)
Also member of the THIRD-I. He's good with fire arms.
Third-I member, new guard assigned to Fujimura, after Houshou was killed.
