Brain Unglaus

Brain Unglaus (ブレイン・アングラウス) is a warrior who turned mercenary after he lost to Gazef Stronoff in a grand tournament to determine the strongest warrior of the Re-Estize Kingdom.

Appearance
Brain Unglaus has brown eyes with blue hair and the appearance of a wild beast. He is equipped with chainmail and wore a necklace and ring, which were infused with protection magic. His whole body is lean and his muscles are tough as steel and tempered through experience.

Personality
Initially, Brain had an arrogant and cocky attitude about his abilities as a fighter and the heights which he could aspire to. Since Brain was a natural prodigy with a sword and learned new new techniques and developed new martial arts more easily than most, he had relied only on his natural talents at the beginning. This attitude was his undoing at the Kingdoms tournament where he lost to Gazef and taught Brain a harsh lesson about complacency. No longer would he rely on his talents alone but resolved to train and hone himself single-mindedly to the exclusion of anything else. This made Brain cold and while he didn't become twisted or immoral, cared nothing for the plight of others.

All of this changed when Shalltear attacked his mercenary band's headquarters. Initially brain thought nothing of the invaders save that they were strong. As he prepared himself for battle he felt a wave of excitement at challenging worthy opponents and he often reveled in the thought of facing other powerful warriors in combat. When he proved himself stronger that Shalltear's vampire bride and Shalltear herself stepped in to fight, Brain was wary yet still confident. This confidence was further increased by the fact that Shalltear didn't even consider Brain a threat. Since Brain had defeated monsters that were stronger than himself and used their arrogance to catch them off guard, he fully expected that his greatest technique would be strong enough to kill the arrogant vampire. Brain had started to believe he was near the pinnacle of swordsmanship and could handle any threat.

Unfortunately for Brain, not only was Shalltear unlike like any monster he had ever faced, to his great misfortune Shalltear was a creature that could be counted among the strongest in the world with mythological levels of power. His greatest technique was stopped by Shalltear simply catching the blade in mid-air. As the fight progressed and Shalltear casually deflected every one of his strikes with merely her pinky nail, Brain's worldview and indeed all of the principles he had based his life on to that point shattered. For the first time Brain felt the terror of facing an overwhelming foe and despair that there existed heights of power he beyond his comprehension that he could never possibly reach. Left completely broken, Brain fled for his life showing a cowardly side that he probably wasn’t even aware of.

When meeting Gazef Stranoff once again, he was a wretched and broken man. He scoffed at the very notion of even trying to learn martial arts or training to become stronger because, as mere humans, neither he nor Gazeff could ever hope to reach to zenith of power. After having the chance to recover from his ordeal, he considered giving up swordsmanship entirely as he no longer saw any point to defeating his rival Gazeff when there were others so far beyond them. After meeting Climb and Sebas Tian, he was shocked to find another being who was vastly superior to himself and one he believed could match Shaltear. Even greater shock over the fact that Climb could withstand Sebas' killing intent but he, Brain, could not. Sebas explained that strength in and of itself was pointless as a goal and only relying on yourself made one weak. Inspired by Sebas and encouraged by Climb, Brain moved forward to find a new purpose for his strength. Letting go of his past resentments towards Gazef and resolving to wield his sword for the sake of those close to him, Brain underwent a drastic change. No longer was he cold, cocky, and arrogant. The new Brain Unglaus became humble and laid back, accepting that he would almost certainly never be the best in the world, and thus felt he had nothing to prove. Focusing on helping his new friends and allies he became even better than before and when he faced Shalltear once more, found the inner strength he lacked before to overcome his fear. Inspired by the examples of Sebas, Gazeff, and Climb he drew out all of his abilities and even used Gazeff's signature attack, Four-Fold Slashes of light, to trim Shalltear's pinky nail. This pleased him greatly as it proved his training wasn't for nothing.

Background
Originally a farmer, Brain was gifted with what could only be described as a God-given talent in the mastery of the sword. He has always believed himself to be the strongest fighter inside the Kingdom, having never lost a fight before he entered the grand tournament to decide the King's guard captain. He easily fought his way to the final where he faced off against Gazef Stronoff. A grand and close battle ensued between the two, but eventually, he would taste his first defeat at the hand of Gazef.

His fame was shattered and his confidence as an unbeatable warrior took a hit. He then decided to do everything he could to become stronger, so he would truly become unbeatable. While he received many offers from nobles, he declined them and went on a journey to improve himself, meeting various people such as Rigrit Bers Caurau. At the same time, in order to make a living, he started working as a mercenary for the Death Spreading Brigade.

The Bloody Valkyrie Arc
When the hideout of the Death Spreading Brigade was being attacked, Brain confronted Shalltear Bloodfallen and tries to defeat her, but suffered a devastating defeat, failing to even scratch her. His absolute confidence was shattered by the immense difference of power between him and the vampire, he fled crying, escaping the massacre through a hidden exit.

The Men in the Kingdom Arc
and The Men in the Kingdom II Arc Brain retreated to the capital city of the Re-Estize Kingdom, in order to hide from Shalltear. Gazef finds Brain slumped on the side of a street and brings him back to his place. Brain is still shaken by his momentous defeat and uses his time to recuperate. Whilst walking through the streets, Brain overhears a commotion and discovers Sebas Tian, as he incapacitates the men, who were attacking a young boy. He follows Sebas and Climb, into an alleyway where he sees Sebas release an extreme amount of killing intent, directed at himself and Climb. This was Climb's requested training under Sebas. After the bloodlust ends, Brain reveals himself and converses with Sebas and Climb before fighting off a group of assassins that were also following Sebas.

After defeating the assassins, Brain, Climb, and Sebas travel to the brothel where Tuare was discovered. They attack the brothel and capture Succulent, one of the members of Six Arms, and a member of Eight Fingers, Cocco Doll, leader of the slave trade department. Following the battle, Brain goes back to rest at Gazef's house and they discuss the events and his defeat at the hands of Shalltear.

Later, Brain is sent to partake in another raid on the Eight Finger's hideouts alongside with Climb. He briefly talks with Gagaran of the Blue Roses before beginning the operation. When they begin, they have a scout infiltrate the compound they are to attack, who discovers that all of the remaining six arms are within the compound, along with a captured girl. As they're about to fall back, they meet Sebas, who came to rescue the girl, Tuare.

Brain, Lockmeier and Climb all infiltrate the back of the compound in order to rescue Tuare while Sebas deals with Six Arms. The trio use invisibility to infiltrate the compound and break Tuare out of her cell. As they are escaping, they are ambushed by Zero, the leader of the Six Arms and are forced to fight. At the same time, they discover that the Tuare, they rescued from the cell was actually Succulent in disguise. In the encounter, Lockmeier and Climb are forced to fight Succulent while Brain fights with Zero. Climb and Lockmeier defeat Succulent and as the battle between Zero and Brain nears an end, Sebas appears and defeats Zero with ease. Brain, Climb, and Lockmyer all exit the building, only to witness a wall of fire off in the distance, which is thought to be another one of the hideouts being currently raided.

During the battle he, Climb, and Lockmeier are inside the wall of fire they find that people are missing from their homes. During their search he spots Shalltear and recognizes her despite the disguise she's wearing. Wanting to fight her again, he leaves Climb and Lockmeier. He fights Shalltear and uses his Four Fold Slash of Light to cut her fingernail. This pleases him greatly and he leaves jubilant. Shalltear pursues him but stops after seeing the two other people with Brain.

The Magic Caster of Destroy Arc
Brain is present during the massacre at Katze Plains along with Climb and Gazef. When Gazef challenges Ainz to a one on one duel Brain protests it but Gazef convinces him to back down and be a witness to it. He watches Gazef die after getting struck by an instant death spell. Ainz allows him and Climb to take the body. He is allowed to leave while carrying Gazef's corpse on his back.

Later in E-Rantel, Brain wonders why Gazef did not run away and expresses sadness over his death. He vows to surpass Gazef and asks Climb to get a drink with him.

The Ruler of Conspiracy Arc
It was mentioned by Princess Renner that Brain Unglaus is searching for a new replacement for Gazef Stronoff in the Royal Capital and plans to train him to becomes the next Warrior Captain.

Abilities and Powers
Brain is a Genius/Fighter class compared to most other melee-oriented combatants who have the Fighter class as their starting class. While most learn martial arts that have been passed down through the ages, Brain has been developing his own unique martial arts.

Known Classes

 * Fighter(Genius)
 * Sword master
 * Sword Saint

Martial Arts

 * Ability Boost: Raises overall strength of the body.
 * Capacity Building: Increases the bodies overall capacity.
 * Crosses
 * Cutting Edge: Able to gather air to give an extra cutting edge to a blade.
 * Field: A unique martial arts that Brain himself has made, allow Brain to perceive everything within a three meters range. In simpler words, it raises the user's accuracy and evasion to the utmost limit.
 * Fortress: Can be used to offset the enemies attacks.
 * Fourfold Slash of Light: Martial arts of Gazef Stronoff, and the skill that defeated Brain in the tournament. Brain learned this skill by his own.
 * Front Cut: It allows the user to cut directly one's opponent using the front of the weapon they are using.
 * God Flash: Third unique art that came from practicing Instantaneous Flash millions of times, this attack is so fast that even when cutting through someone, blood will not stick to the blade.
 * Heavy Blow: Raises the weapon's crushing capability.
 * Instantaneous Flash: The second unique art, allows Brain to attack at an extreme speed.
 * Nail Clipper: It is the result of the unison with three other martial skills: Fourfold Slash of Light, Field, and God Flash to create this skill against Shalltear Bloodfallen.
 * Oblique Strike
 * Severing Blade: It would allow one to take down strong opponents in a single attack.
 * Strong Assault: Increases attack power allowing oneself to damage someone with heavy armor.
 * Vertical Strike: Allows the user to execute a strike attack from a vertical axis
 * Wind of the Great Forest: Brain's trump card. A combination of Field and God Flash. It was named after the sound of blood spurting shortly after severing the neck.

Main Equipment

 * Katana:  Its a normal unenchanted weapon bought from a city in the middle of the desert located south of Re-Estize Kingdom. Its cutting capability surpasses those of ordinary magic weapons.
 * Necklace of Eye: It protected his eyes when activated. Resistance to blind status, night vision, light filtering.
 * Ring of Magicbound: allowed its wearer to bind a low-level spell to the item and invoke it with the ring as the catalyst.
 * Chain Shirt: It is a chain armor shirt that is relatively light and protects the torso. Brain wears this under his normal shirt.

Gazef Stronoff
Brain sees Gazef as his number one nemesis and rival due to his defeat at the hands of the Kingdom's Strongest Warrior. However, that all changed right after having his self-confidence and willpower was crushed by Shalltear Bloodfallen. Unlike how they've met each other during their match together at the tournament, Brain confronted Gazef yet again, but this time he was in a pessimistic mood. Brain had almost prompted himself to even think of wanting to suicide before Gazef step in to stop him from thinking that way. Brain comes to later respect Gazef for his action and appreciates his kindness for helping him out in his time of need.

Shalltear Bloodfallen
Originally, Brain has once used to look down on Shalltear and thought of her as nothing more than a foolish and arrogant demon that overestimated her abilities. After Shalltear renders Brain's most powerful techniques completely useless with only her pinky finger alone, this also causes Brain's spirit as a warrior to become broken as well, realizing that she is an entity who cannot be defeated by him because he is just a human. Brain would then go on and flee from her with everything he has. During his escape to the Re-Estize Kingdom, Brain is unable to sleep soundly due to having nightmares about her following him until now.

After meeting Sebas and Climb, Brain has somehow managed to have gained back his lost confidence. Later on, Brain would come across Shalltear once again and already knows that he is no match against her. However, he was still determined on deciding to confront her again. Using his strongest abilities, Brain was able to at least manage to cut off a tip of the nail from Shalltear's pinky finger. This is tremendously joyful to Brain's pride that his entire life of training wasn't all for nothing.

Climb
After seeing Climb survived after being exposed to Sebas' killing intent despite being much weaker than him and finding out the reason he could stand up to a being whose strength is on par with Shalltear is because he wants to protect the Princess, Brain went through a drastic change in his personality, restored his confidence, and begin to care for Climb, helping him on many occasions.

Sebas Tian
Brain greatly admired Sebas' strength and believed him to be as strong as Shalltear. Brain also believed that even if he and Gazef were to fight Sebas together, they would still be outmatched.

Trivia

 * In the Web Novel, he becomes a vampire under Shalltear Bloodfallen.
 * Brain managed to chip off Shalltear's pinky fingernail using Fourfold Slash of Light, the second time they met.
 * Brain is the only person so far to know about the vampire's true identity known as Shalltear but still believes that Honyopenyoko is another vampire that Momon had slain instead.
 * His hair is blue because he dyed it.
 * Maruyama intended to make him homosexual, but then decided against it and simply made him obsess with sword skill.

Quotes

 * (Facing Shalltear): "These foolish monsters that think they're the strongest, they're all the same. They think that humans are weak, that our bodies are fragile, our abilities nonexistent. But I will teach you how dangerous it is to underestimate us."
 * (To Gazef): "Stronoff! We can never reach the world of the truly powerful, no matter how hard we try. As long as we’re born human, this is the truth. In the end, we're just children holding sticks. We're playing with swords now, but we are still mere children pretending to be swordsmen."
 * (To Gazef): "Stronoff. Strength achieved from the sword really is garbage. It's useless in front of true power."
 * (To Succulent): "The strength that you speak of is the same. We're probably speaking about similar things so let me give you a warning. Even if we claim that we’re strong, we’re nothing special."
 * (To Gazef): "Well, I guess I won't be able to protect the Princess and it'll be a shame to not be able to train Climb any more...but Gazef, I owe you. I'll do any dirty deed you want with a smile on my face."
 * (To both Gazef and Ainz): "Wait, wait a minute! Hang on, Gazef! I can always die alongside you! Don't go alone! My lord Sorcerer-King! Please, I beg you! I know this is shameless beyond belief, but this is a heartfelt request! Please allow us both to face you! I know it won't inconvenience you in the slightest!"
 * (To himself after Gazef's death): "Why did you choose to die? Wouldn't it have been fine to run from that monster? Wouldn’t it have been like conserving your strength? Why?! If you had to die, I wanted to go with you!"
 * (To himself about Gazef): "You...like this...I admired you...I wanted to die with you. Why wouldn't you let me fight by your side? Why didn't you tell me that I could die with you!"

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