|“||I'm going to be the Magic Emperor! This is something I'll never give up on!||”|
— To himself in The Boy's Vow
Asta 「アスタ Asuta」 is an orphan left under the care of a church in the village of Hage. He is the wielder of the five-leaf clover grimoire and a member of Clover Kingdom's Black Bull and Royal Knights squads. He is a 3rd Class Junior Magic Knight.
Asta is a young man of short stature with a muscular build. He has green eyes and messy, ash blond hair with a single strand protruding upwards from the center of his head. He keeps his hair together with a black headband, which has the gold-colored Black Bull insignia and has a red-colored four-sided star with three stitches on the back of it.
Asta's common outfit consists of a plain-white tunic with a V-shaped collar underneath a dark blue jacket whose sleeves extend only up to his elbows. He sports a pair of matching shorts which has a stitch marks on the left side. His pants also extends just below his knees. His shoes is made out of two different cloths, the parts covering his ankles, the soles the same color as his jacket and pants. The parts covering his toes are white, a vertical stitch mark going from the bridge to his toes.
After receiving his grimoire, Asta wears a pouch strapped to a brown leather belt. Additionally, as a member of Black Bull, he wears his squad's signature robe, which is black and short with gold trimming and covers the upper half of his torso. It also has a hood and a gold-colored button located at the right-hand side to hold it together, while the left-hand side displays the squad's insignia.
In his Black Asta form, his right arm is covered in black Anti Magic, a black wing sprouts from his right shoulder, a black horn sprouts from the right side of his head, his right canine teeth elongate, and his right eye turns red and the pupil becomes slit-like.
Asta generally is cheerful and hyperactive. He tends to shout to express his thoughts and expresses his goals, regardless of other people's opinions, as seen when he expressed his goal on becoming a Magic Emperor during the Magic Knights entrance exam, where he tells other people who disagree with him to be quiet. His strong tenacity interests Yami Sukehiro enough to recruit him into his ranks. His strong determination also leads him to have a strong will to never give up and keep standing during a harsh battle, as acknowledged by Magna Swing.
Because of his upbringing at the Forsaken region, Asta frequently receives harsh opinions and insults from almost everyone he meets. This makes Asta have a slightly sarcastic nature as he tries to defend himself. But, having received harsh opinions from others, Asta has developed an immunity to them as he could easily brush them off without getting overly annoyed. However, Asta is still annoyed when others deeply insult his comrades; he will not hesitate to confront them as he tries to defend his friends.
Asta also has a very strong sense of justice, which is shown during his fight against Heath Grice, as he believes that everyone deserves to be protected. It is also not limited to only his comrades but his enemies as well, as noted when he asks his fellow squadmates to take the unconscious Mars along with them while the dungeon is collapsing. He argues that their mission is only to explore a dungeon as they are not ordered to kill any enemies. Therefore, Asta seems to see the positive side of everyone and never takes an insult too seriously, as seen when he still befriends both Yuno and Noelle Silva even after both given him harsh opinions.
His open, friendly and non judgmental attitude and indomitable will and stubborness has earned him the respect of almost everyone he meets, even nobles such as Klaus and Fuegoleon Vermillion. It has also earned him the affection of numerous girls, though his love for Sister Lily has made him largely oblivious of this fact.
- Anti Magic: Asta uses this unique energy to nullify magic. After the Witch Queen uses her blood to remove the limits on Asta's Anti Magic, he learns to channel the energy throughout his body and attain a form where Anti Magic courses through him and covers part of his body. Called Black Asta 「ブラックアスタ Burakku Asuta」, this form is drawn to strong magic and greatly increases his strength and speed while clearing his mind of all doubts and extraneous thoughts and improving his focus and clarity of mind, and additionally granting him the ability to fly. To activate the form Asta must stand still and concentrate on circulating the energy, which leaves him open to attack. Additionally, the physical exhaustion of using the form limits Asta's usage to only twice each day, although he can push for a third.
- Expert Swordsman: Asta initially has a rough style due to having an unconventional sword and having only received basic training from Fanzell Kruger. Over time he develops greater skill through battle experience, additional swords, and ki-sensing.
- No Magic Power: Asta possesses no mana and so is unable to use magic. This enables Asta to wield Anti Magic without suffering the weakening effects since he has no magic to drain. This also makes him undetectable to mana-sensors.
- Enhanced Strength: Asta possesses a high level of physical strength, able to do a thousand single-handed handstand push-ups, to swing heavy swords single-handedly, and to punch holes in rock walls with no injury to himself. Asta can swing his swords with such force that his opponents break stone when they crash. The Witch Queen further enhances his arm strength using blood magic.
- Enhanced Speed: Asta is capable of moving in an above-average speed, which causes William Vangeance to think that he has used magic to aid himself.
- Enhanced Durability: Asta possesses a high durability, as seen when he is able to keep standing up, despite receiving numerous attacks from Heath. He is even able to emerge from Licht's attempted cave-in relatively unharmed alongside Yami.
- Enhanced Instinct: Asta possesses a heightened level of instinct, as demonstrated when he can unconsciously move his body in the best way to defend himself.
- Ki: A principle originating from Yami's homeland, this allows Asta to use a sixth sense and to perceive and react to unseen attacks and people.
- Keen Intellect: Despite his hyperactive and headstrong nature, Asta has shown to be intelligent and thoughtful in his own right. He understands many situations he finds himself in and can be tactical when needed such as cutting out curses with his swords and thinking of different tactics in battle.
- Grimoire: Asta wields a five-leaf clover grimoire, which he receives during his fight with Revchi. The grimoire is tattered and covered in dirt, a black five-leaf clover insignia at the center of its front cover. This clover symbol is largely unseen due to the dirt covering it, making most (including Asta) assume that the grimoire possesses unusual magic but is otherwise ordinary. Asta is able to summon a sword from it, which he uses for his Anti Magic. His grimoire used to be a four-leaf clover grimoire that belonged to Licht.
- Demon-Slayer Sword: Asta's first sword can cut spells with its edges and deflect them with the flat of the blade.
- Demon-Dweller Sword: Asta's second sword can cut spells with its edges, much like the Demon-Slayer Sword. It can also borrow the magic from the people around him, thereby increasing the force and range of his attacks. Besides Licht, only Asta can wield this sword because he possesses no mana, as other mages would not be able to use any magic while in contact with the sword and would have their mana reserves depleted.
- Demon-Destroyer Sword: Asta's third sword can cut spells with its edges, much like his other two swords. It can also absorb and remove the effects of spells and negate Reincarnation Magic.
Yuno is Asta's foster brother, best friend and rival. They grew up at Hage Village together. Both of them are aiming for the title of Magic Emperor, and competing to get the title first.
Noelle is Asta's squadmate in the Black Bulls. She initially disliked him of his low status and disrespectful attitude until he saves her when she loses control of her magic and states how amazing her powers are. Soon after he became the first commoner she's ever acknowledged and her attitude towards him changes. As the story progresses she develops strong feelings for him but is reluctant to express it (although he doesn't notice). She blasts away him every time he either says or does something stupid. Asta himself considers her a close friend as they tend to spend the most time together of the black bulls and end up fighting in battles together most often.
Asta has repeatedly proposed to marry her, often several times at once, which she has flat denied just as many times despite his insistence prompting her to use Magic at times to draw a line.
Asta considers her a friend despite being in a different squad but is oblivious to her romantic feelings toward him.
Despite an awkward first meeting Asta and Rebecca become fast friends after bonding over their experiences with their siblings. Asta sees Rebecca as a close friend and he enjoys spending time with her and her siblings though like the other girls he is oblivious to her romantic feelings toward him.
- "I'm going to be the Magic Emperor!! This is something I'll never give up on!!" 「オレは 魔法帝に なる...!! これだけは 譲れねー...!! "Ore wa Mahōtei ni naru...!! Kore dake wa yuzurene...!!"」
- "Even with no magical powers... I'll become the Magic Emperor." 「魔力が 無くても オレは 魔法帝に なる "Maryoku ga nakute mo Ore wa Mahōtei ni naru"」
- "My magic is never giving up!!!!" 「諦めないのがオレの魔法だ!!!! "Akiramenai no ga ore no mahōda!!!!"」
- "Gravel may be gravel, but me? I'm gravel that shatters diamonds!!!!" 「石コロは石コロでもオレはァア ダイヤモンドを砕く石コロだ!!!! "Ishikoro wa ishikoro demo ore wa~aa daiyamondo o kudaku ishikoro da!!!!"」
- "You people are special... And we got stronger... And made it this far... So we could protect everyone with you. So we could compete and help each other improve!! So we could fight together!!" 「オレ達は... 特別なオマエらと... みんなを護る為に... 競い合い高め合う為に... 一緒に戦う為に...!! 強くなってここまで来たんだ...!! "Ore-tachi wa... Tokubetsuna omae-ra to... Min'na o mamoru tame ni... Kisoiai takame au tame ni... Issho ni tatakau tame ni...!! Tsuyoku natte koko made kita nda...!!"」
- Asta's favorite person is Sister Lily.
- Question Brigade Rankings:
- Asta ranked first in the first and second popularity polls.
- In the VIZ popularity polls, Asta ranked second in the first and second.