Ginji Amano
Voiced by: Showtaro Morikubo (as an adult), Ryōko Shiraishi (as a child) (Japanese); J. Shanon Weaver (English))
Ginji Amano (天野銀次, Amano Ginji) is the "G" in the GetBackers. He is 18 years old in the manga. Ginji was formerly the leader of a gang called the VOLTS in Infinity Fortress, the fearsome Lightning Emperor (雷帝, Raitei).
He received the title Lightning Emperor because of his ability to control electricity. This control grants him several unique abilities such as amazing regenerative power and the ability to become a human magnet and battery. Despite Ginji's dark past, his demeanor is one of an unassuming, energetic, and friendly boy with a strong sense of justice. He makes friends easily, often without trying and is trusting and open to an almost naive extent. However, when exposed to remnants of his past, he has a tendency to revert to his darker "Lightning Emperor" persona. For comical purposes, he also turns droopy and super deformed, most likely designed after a Tarepanda. He's frequently beaten up by Ban for doing stupid things. As a child, his guardian was Takeru Teshimine, then ruler of the Limitless Fortress. Ginji founded the "VOLTS", a gang led by The Lightning Emperor, and "The Four Kings of the VOLTS" to protect the Infinity Fortress from the monsters of the Beltline. During the era of the VOLTS, only one man (Midou Ban) is known to have defeated the Lightning Emperor, though not in a fight of physical strength. All Ban did was show him that he was causing pain to many. While they were fighting, Lightning Emperor summoned lightning which resulted in a huge blast. Though Ban escaped from the blast, he was able to see the infinite energy flowing in the Lightning Emperor, which made it impossible to beat him. Then, Ban remembered that the Lightning Emperor only appeared after Ban attacked one of his friends. He then showed him that though the Lightning Emperor said that he would protect everyone, he himself killed many since many were caught up in the blast. After seeing the devastation, he caused, the Lightning Emperor shrieked and expelled all the power within him, turning back into Ginji. Ban noticed that he has changed and did not deliver the killing blow to Ginji as he sat in front of him, his head bowed and crying.
Little is known of his past until the last volume of the manga where it is revealed that his mother, who Teshimine told Ginji was waiting for him in Babylon City, had created the world in which the GetBackers live. Her reason for doing this was that in the real world (Babylon City), Ginji had died as a child. Unbearably sad, she considered cloning him, but realized that it would not be the same child, she created a back-up of the world where he could live and grow.
When transformed into the Lightning Emperor, Ginji glows with a brilliant light and has bolts of electricity flowing around him. Although sharing the same body as that of Ginji, the Lightning Emperor is the polar opposite of the happy-go-lucky Ginji; his features harden, and he becomes merciless towards almost anyone. He first came into being when Ginji was a young boy, as the Beltline monsters invaded the lower levels of the Limitless Fortress. Ginji and a friend were attempting to escape from the hunters when Ginji's friend was struck by an arrow. The whole invasion force was annihilated in an instant. From that point on, whenever Ginji is confronted with a difficult situation, emotionally or physically, the Lightning Emperor appears to make everything that troubles Ginji disappear. However, this ultimately causes more pain for the peaceful Ginji, as death is the last thing he wants.
In the "Get Back the Lost Time" arc, after the Lightning Emperor was successfully able to defeat the Voodoo King, it is revealed that the Lightning Emperor would never appear again as his reason for existing was over. The Lightning Emperor, who was born from the synchronization of Ginji's rage and Infinity Fortress' power, existed to defeat the person whose purpose was disrupting the plans of the "Archive" (the Voodoo King). His purpose was to protect the world without judgment from Good or Evil.
The source of the Lightning Emperor's power is the limitless energy currents flowing through the Infinity Fortress, and as such, he draws as much power from them as he needs. Sometimes, though, this can put the Infinity Fortress in a bad situation if the Lightning Emperor calls for more power in a single instant than the tower is capable of producing. For this reason, he is dangerous to the "Brain Trust" in Babylon City who possess the "Archive" (the sum total of human knowledge past, present and future) as he could potentially erase the "Archive" if he blacked out the Limitless Fortress. Another reason why Ginji/the Lightning Emperor is so dangerous inside Infinity Fortress is because his existence is "random" in the Babylon City Archives. This means his existence was not foretold and therefore his existence inside Infinity Fortress changes all the prophecies made by the Brain Trust. The reason for this most likely has to do with his mother.