Teru Mikami is a fanatical follower of Kira’s Kingdom who is chosen by Light to be the owner of Misa’s Death Note after it becomes too dangerous for Misa to have it. He is first introduced in Volume ten, chapter 81 as an obsessive adherent of Kira, believing him to be a god sent to dispense justice on earth.
Mikami was a sensitive young boy with deep sense of justice who was incessantly beaten by bullies. He grows up believing that those who are evil should be "deleted" from this world. He is highly intelligent and works as a prosecuting attorney. Even though he appears calm and stoic, Mikami shows his psychological imbalance when he fervently writes in the Death Note while muttering to himself "delete."
At first, Light is alarmed at how Mikami seems to take his own initiative without Kira’s consent. However, Mikami decides to communicate to Kira through Sakura TV showing his absolute loyalty to him. Then, Light uses anchorwoman Kiyomi Takada to give orders to Mikami.
Kiyomi Takada is a successful anchorwoman of NHN whom Light seduces in order to use her as an intermediary between him and Mikami. She is briefly introduced in Volume two Chapter 31 as Light’s “girlfriend” and described as a popular, proud beauty who often plays hard to get. She then reappears as the NHN anchorwoman in Volume ten Chapter 85 who is chosen by Mikada to be Kira's spokesperson.Astonished by the coincidence that Mikada chose his ex-girlfriend, Light takes advantage of this situation. He seduces Mikada, reveals to her that he is Kira and promises to her that he will make her his goddess when he rules the world as a god. Light gives Mikami orders through messages that he gives to Takada. In addition, he manipulates Takada to do whatever he pleases.
Investigation Team
Soichiro Yagami is Light Yagami's father and the detective superintendent of the Japanese National Police Agency. He is also the leader of the small group of investigators who are working on the Kira case under L's command. Light Yagami uses his computer to research the criminals that he will kill and to spy on what the NPA actually knows about Kira. Even though his demanding job keeps him from home, he is dedicated to his son, Light. Throughout the series, he never once believes that his son is Kira, even when L insists. He voluntarily places himself under L's arrest until Light is proven innocent.
Tota Matsudais a naive and somewhat excitable member of the investigation team. He often does bold things and says things without thinking (often asking if what Kira is doing is a good thing). He serves as a comic relief sometimes and often expresses that he genuinely likes Misa and Light. Like Soichiro, he refuses to believe that Light is Kira and is quickly convinced that he is innocent.
Kanzo Mogiis a member of the investigation team. He is often silent and not much is known about him. When he is tricked by Mello to be questioned by Near, Mogi shows his loyalty to Light and the rest of the NPA by not speaking. However, he is one of the first of the investigators to suspect that Light may be Kira.
Shuichi Aizawa is a member of the investigation team. He quits the team and remains in the police force after protesting L's methods. However, he continues to help the team as a police officer. Upon L's death, he returns to the investigation team and works under Light. However, he begins to grow increasingly suspicious of Light. He contacts Near and tells him of his suspicions.
Watari (a.k.a. Quillsh Wammy) is, at first, shown as a mysterious shadowed figure in coat who personally sets up the meetings between L and his clients. However, he is soon revealed as an aging man who is L's assistant, often providing logistics to the investigation team and back-up as a sharpshooter.
He was originally, however, an inventor who established an orphanage in England called Wammy's House for exceptionally gifted children like Mello and Near.
