Sol badguy - guilty gear

Sol has tan skin, brown hair and brown eyes which have often been depicted as golden with slit pupils, in the process distinguishing his true nature as a Gear. Wearing a red headband bearing the words "Rock You", Sol keeps his spiky, waist-length hair tied at all times. The headband conceals the red brand on his forehead that would expose him as a Gear. He has a muscular physique, whether he is infused with Flame of Corruption or not. As Frederick, he is depicted with either brown or blue eyes; he sports shorter, less spiky hair, a muscular physique and a white lab coat.

He wears a tight, black undershirt with the top half covered by a red and black sleeveless jacket, along with white jeans. His belt buckle has the word "FREE" scratched on it and a drape of red cloth hanging down beneath. Sol also wears a pair of black fingerless gloves, red shoes, and a multitude of belts, including a lone one on his left bicep. In later games, he is seen sporting long-sleeved, red leather jackets with handcuffs strapped in the sides of the sleeves and a single black accent at the back of his jackets as well.

In the past, as "Frederick", he seemed to be a simple-yet-aloof scientist, who was content with having only two friends, not bothering to compromise his own integrity to appeal to others around him;[16] however, upon becoming a "monster",[17] his prior unruly traits became much more pronounced.

Sullen and unrefined, Sol only speaks to others when absolutely necessary.[18] Consequently, he is not very good at expressing himself, and tends to compensate by bullying people into line or simply steamrolling them.[19] A lone wolf with a belligerent streak, Sol is actually an extremely intelligent individual who doesn't tolerate nonsense[16][20] and gets "grumpy" whenever he cannot explain something with logic.[21] He is also quite stubborn, never allowing the opinions of others to dissuade him once he has made up his mind. Sol is seen by most people as crude and self-centered, even those who might call him a friend.[19]

Conversely, Sol hates working any harder than he has to, rarely putting much effort into anything[19] that isn't related to his goals, and is often irritated by having to deal with opponents. This laziness is reflected in his fighting style—his moves are unrefined, but powerful so as to finish enemies with a single blow[22]—and extends to how he raised Sin, putting him through the most basic forms of education and rarely explaining concepts in detail.[23]

While he may cynically mock Ky's "justice",[24] Sol is utterly dedicated to averting further tragedy,[25] even as he refuses to acknowledge it.[26][27] Yet truthfully he is quite compassionate in contrast to his tough, anti-social persona. He spares the lives of Solaria,[28] Testament[29] and Dizzy,[30] raises Sin at the behest of Ky and Dizzy,[31] swears to save Elphelt,[32] comforts Ramlethal,[33] and even offers a prayer for Justice's soul as she dies.[1]

Pre-Overture, Sol roamed the world alone and kept everyone at a distance. Bearing the guilt of working on the Gear Project,[1] humanity's near extinction,[34] Aria's death,[35] the burden of That Man's betrayal[1] and being a "monster",[26] Sol dedicated himself to eliminating all Gears and to exact his revenge on That Man.[1] However, his clashes with other characters and learning of their motivations slowly begin to change his outlook, as does reluctantly taking Sin as his ward. In Revelator, Sol admits to Ariels that the world where he kept himself distant to others is worth saving, and finally acknowledges that despite what he is and his fear of the future, he is no longer alone in the world as his own actions and others' affect each other within the world; he compares it to a "huge firework he can't miss".[4] In Strive, Sol is shown to be more at ease and friendly with those around him,[9][12] yet he still prefers to roam the world and lean back into his prior profession as a bounty hunter before he considers settling down. Later to I-No, he also admits about himself "just happening to be an idiot" via his preferred approaches to life that keep him from boredom; he equates people's multiplying values to books that will always pile up in one's life — a testament to how he's come to accept his life with a better understanding.

Despite his often composed demeanor, Sol expresses a nervous attitude whenever his connection to Dizzy is discussed.[26] He is shown feeling embarrassment and is eager to avoid the issue, rather than acknowledge the possibility that he may be Dizzy's father.[11] Yet even then in the times he's encountered her or passed by her before their blood-relationship was further addressed, he still deeply cares for her and in the later parts of his life has ended up being less uptight around her. Ultimately, at the end of Dual Rulers, thanks to an encouragement from a fellow father, Vernon, Sol properly moves on and accepted his family after being encouraged to present himself at his daughter's wedding.