Nero is actually about 4 years old though given the appearance of a 17-18 year old man. he wears a black and red split coat with a flame decal along the edges and torso. he wears an emblem on the back of his coat that resembles a burning core. his hair spikes behind him and extends down to his lower back. he has a few bangs in his face. it's black with red tips. his eyes, since he was created and not born, do not have pupils giving him a soulless look. this look does reflect the fact that he doesn't have a soul. while he was created from data he is in a near human body. he produces blood though in a sense he doesn't need it, losing too much can prove fatal. the things that he doesn't share from a human is his heart. striking his heart will not instantly kill him, though it will severely injure him beyond battling condition and he will be rendered unable to fight. his heart is a gem. this gem is what his body is kept together with. this gem gives him life as well as his control over his own aura. unlike a human's aura his is to a frequency that is unique. although everyone has a different aura his is set apart by far being the highest frequency known to man. this does not mean it is the strongest however. just that no one can control his aura even in possession. Nero has his own Hyperresonance that he uses in some of his attacks. his Hyperresonance is of Aura and cannot break down or re-create matter like normal. another difference lies inside of him. he has no organs as he does not head them to live. although food can be eaten his body naturally breaks it down for energy. since Nero has no organs vital blows and internal blows have no effect. the aura produced by the gem is used in multiple ways. with it he can see through illusion. this meaning if he were trapped in a room with a false wall covering a hidden passage, he can see through it. with this same sense he can see spectral beings and places that are normally unseen to the normal eye. also he can transfer this energy to his hands and touch those same spectral beings as well as other non bodied forces like water, slime, ect. he cannot pass this on to his sword however so he cannot slash those non bodied forces. he can also use this aura to scan the area around him to sense the aura of those around him. with this he can see if anyone is hiding or coming up on him when doing this he sees them as blobs and can't make them out. though if he has already met the person or thing then said person or thing will not appear as a blob and will show a clear image of that said person or thing. with this same sense he can measure the power of an opponent through his/her aura. he can tell the full power of someone by scanning their aura. Nero doesn't care for name calling or insults towards him and will often give the phrase "call me what you will. i do not care" when someone insults him. Nero's normal expression as a seemingly permanent scowl on his face that will sometimes turn into a smirk. Nero rarely smiles to anyone though he does have emotions. he never shows them because some might exploit those feelings. that's what he thinks anyways. being a man with a method Nero has his own reasons for doing almost everything. he will even preform his own agenda and then worry about the situation at hand later. although he seems serious on the outside and may even act cold to some he is kindhearted and caring for those close to him and will carelessly throw his life on the line to save another. Nero isn't exactly friendly to new people right off the bat. it's how you approach him that he decides to trust you or not. Nero can also access a sudden burst of energy called an Over Drive. this burst of energy can blow back enemies though the blow back doing little no damage though provide him with a variety of bonuses like no stagger, and a slight stat boost. though this lasts for a limited time and if it ends Nero will be too tired to preform actions for a while. on top of that he can access another store of energy to enable him to enter Burst Mode. in Burst Mode he still has the no stagger but the stat boost is even higher and his normal assaults are converted to the fire type. although Tech will retain their normal element less properties. plus he gains the ability to use his U.Tech lv2. in Burst Mode his appearance also changes, the tips of his hair, coat, and sleeves ignite in a red flame as his right eye has a blue flame. in Burst mode he has the largest stat increase raising his stats to their maximum levels though he still has the weak M.Atk and M.Def he has outstanding Atk and Def making this his most powerful transformation. though this lasts even shorter than the Over Drive, though when it runs out he doesn't have fatigue and can continue on. his attacks are all strong in their own way but some have bad sides. in the most famous Tech. Ghost Wolf, Nero is granted temporary invulnerability to all forms of attack. even the enemy's most powerful attack can be avoided by using this, but on the flip side he cannot launch any psychical Tech or assaults for the duration and when it runs out there is a wait for it to recharge so it can be used again. in Guardian [Force] a shield appears to reflect projectiles. this can be held up for as long as he wants but the shield has it's own health and CAN break. these also need recharge time before they can be used again. Tech like Geshourai and Center can only be used if their base forms are used [ Eshourai and Crest] also Burst mode can only be activated when he is in trouble [-25% HP] and is in a Fire Tuned Field in battle. then he will use the Tune to transform himself.