Satou

Name: Echo
True name: unknown
Alias: Satou Inoue, Thunderbird, Beast of destruction
Origin: commune of Astaros
Species: extensial gater* (gate user) – 7 gated system
^{* Gaters are the creatures that obtain energy due to using the system of inner gates (“gate” is figurative here) which connect them with a metaphysical entity consisting of pure primeval energy. Gates prevent their users to connect with this entity directly so they won’t lose themselves in it. Nevertheless, in the same time gates provide the minor connection so gaters receive a lot more energy than any other creatures. There’re low-gated and high-gated gaters. Low-gated gaters have 2-4 gates, and high-gated have 5-12 gates. The more gates the gater has, the stronger they could become. Gaters never use anaerobic type of energy.}
Occupation: mercenary in non governmental military organization (HAWKS Ink.), Earth
General info: Arrogant, presumptuous, rude and careless. Always on his own and never obeys to anyone. Extremely antisocial. Despite being pretty much the strongest creature on Earth, prefers not to participate in any conflicts. Acts like everything that happens around him is none of his business. However when things get to him, he is the first to settle everything the way he wants.
He doesn't like to kill usually, but his cruel nature often leans him to violence, even when it's unnecessary. He is not proud of this side of him, but it seems that he is not going to change anything in his character. Actually he sees profit in it. At least he is always ready to respond with violence to violence without a doubt. It often saves his ass.
To other people he seems inhuman and he is. Being a gater he has different mind and different needs, he is not afraid of death or pain, but has another fears unusual for humans. He lives in human society, so there's not many people who can understand him and who he could be on an equal footing with.
Echo seems to be very calm and imperturbable from the outside, but it may be difficult for him to control his emotions. Most of the time he feels unreasonable anger though nothing is really angers him. His emotion chart is poor and consists of fifty shades of hatred. He also tend to go a little bit insane sometimes.
Due to extensial energy usage he can gain extraordinary powers, but he has severe limitations. It may either burn him up, or leave him unconscious for a significant amount of time. So his abilities are pretty much similar to nukes: nobody wants it to be used and if it is used, then everyone's screwed (but mostly Echo).
The severe limitations for Echo's powers come from the fact that it is used on Earth and not in a place of common gater's habitat. Earth is not really suitable for gaters and considered the worst place to live due to low energy saturation and distant location from The Great Attractor (the place that all gaters love for a reason). Despite that Echo peveloped some methods to avoid most consequences and successfully uses his powers. And sometimes fails. Pretty bad.
He has almost regular human appearance, but his real form is much more complex and, actually, not yet formed. He modified his human body so he could inhabit Earth without major problems and summon his "true form", so called limb, whatever he wishes.

Radiation spectrum*: shifting light blues
^{* Radiation spectrum is a spectral depiction of an entity or a soul, and can clearly define creature that emits a certain essence or energy. Kinda like angels glow blue in Eva.}

Energy type*: extensial energy user
^{* Energy type is stands for properties of energy the examined entity uses. Anaerobic energy is a low-quality and disturbed type that is obtained from other types of energy by force. Aerobic energy is high-quality and vibrant type that is obtained by living beings through their existence. Extensial energy is poorly studied and can’t be observed properly, but it considered the purest and most vigorous type.}

Trivia:
- he went through multiple cycles now (reincarnation kinda)
- his archetype (first incarnation) is one of the basic essences of the creation
- his true name is known to just one creature, even Echo forgot it
- and actually he doesn't want to remember