Lagann

General Description
Lagann, also known as Kieron Bernard in the mortal world, is an SX-Class Angel, employed as an assassin by the Church, but later being recruited by Black Crown, a guild of mages that focus on maintaining balance in the magical world.

Appearance
Kieron is noted by Amber as only ever wearing red, blue, black and white, and usually wearing a blank expression on his face. He has dark-blue eyes, which are described as looking like lapis, and spiky black hair.

When on missions, Kieron wears a navy-blue suit of armor, which is patterned with black stripes and has a black visor.

Abilities
The host of the lost-god Igneeis, Lagann has access to three different types of magic that make him a skilled opponent, and even more skilled assassin.


 * Time Magic: Using his Time Magic, Kieron can slip into an alternate dimension where time is frozen for as long as five seconds; however, he has to be holding his breath, which means the time he can spend in that dimension begins to lower throughout the corse of a battle.
 * Blue-Fire Magic: Allows Kieron to shoot and distribute flames form his body, which can bend into different shapes as well; it works the same as regular Fire Magic, but burns hotter and is faster in speed.
 * Speed-Burst Magic: Gives Kieron the ability to temporarily accelerate his speed to ten times its normal amount; when used in combination with his Time Magic, his speed is compared to that of instant teleportation in short-range
 * Spirit-Chain Magic: Allows Kieron to summons unbreakable chains from the Spirit Dimension, which he can use in combat and for casual purposes
 * Eyes of Prevention: A magical attack that comes from his eyes, the Eyes of Prevention freeze the opponent he's facing within time for one second and hits them with ten hard strikes by bending the space-time around them inwards
 * Soul Tracking: By flaring up his eyes with magic, Kieron can instantly find the location of his opponent by locating their soul — when he does this, he can land a free attack to it at no cost
 * Divine Protection Anathema: Creates an indestructible barrier made from the twelfth dimension that stays for five seconds and instantly destroys any ranged attack that comes into contact with it — it can be activated once a minute. In O.C.D. Mode, the cool-down is reduced to forty-five seconds, and the barrier can be placed around anyone he looks at is, trapping or capturing them.

Special Spells

 * Heart Snatcher: By entering his dimension where time is unmoving, Kieron can stick his hand through his opponents and grab their heart; however, he only uses this when in danger or when necessary, as he finds it immoral and disgusting
 * Dimensional Pulse: By snapping his fingers, Kieron can cause a ripple through space-time that can momentarily stagger an opponent who's in the midst of rushing at him
 * Blue Gigaflame: A highly-destructive spell that shoots a massive column of flames from Kieron's palm; however, he only uses this when necessary as it can be powerful enough to destroy multiple cities and a large chunk of his surroundings
 * Drill of Time: By concentrating high amounts of Time Magic, Kieron can strike his opponent with an attack that will freeze them within time for ten seconds, but also do the same to him for five seconds

Personality
As noted by Zane, Kieron has a very complex personality, sometimes being almost emotionless, and other times being overly-energetic. When he discovers what happened to Melanie, his long-lost sister, Kieron quits his job as an assassin and joins Black Crown, where he learns to how to make friends and work alongside others for a common goal.

Throughout the series, Kieron makes constant references to popular anime franchises such as Dragon Ball Z, Fairy Tail, Bleach, and Shakugan No Shana.

Background
The son of wealthy parents in the east who were deeply rooted in politics, Kieron Bernard grew up with his sister, Melanie, until they were mysteriously separated and sent off to different foster homes at the age of eleven. His foster parents, who were mages, informed him that he was the host of the lost-god Igneeis, and began to train him in the three different magics he was capable of using.

When he was fifteen, two years before the events of Book 1, his parents were killed by a fallen angel, leading Kieron to join the Church as an assassin, who would take out rogue devils. After not too long, he was promoted to the rank of SX-Class, after defeating an SX-Class Devil in combat and keeping his one-hundred-percent assassination-success rate.

Relationships

 * Zane Jackson: when they first met, Kieron recognized Zane as being the host of Emperor Unus, and telling him that he would one day hope to find him, as he's been unable to find a worthy opponent in a long time. In Book 3, Zane uses his Crimson-Gold Dragon-Slayer Mode to fight on even grounds with Kieron, eventually overpowering him after forcing him to use too much of Time Magic, and taking the win; afterwards, the two become less of rivals and more like friends.
 * Amber Lucifer: Since Kieron was Melanie's long-lost brother, Amber feels a responsibility to make sure that Kieron is a good state mentally, and is seen giving him advice from time-to-time whenever she can. In Book 3, after Lagann's fight with Zane, Amber invites him to join Black Crown, which he accepts.
 * Divinos: In Book 2, Kieron is seen a short battle against Divinos, but is unable to defeat him as the ladder figures out how to enter Kieron's dimension where time is frozen. Though the two rarely interact with each other afterwards, and are rarely seen together, they have mutual respect for each other as guild-mates.
 * Mio Tsukomi: With both of them having experienced the loss of siblings, the two find themselves confiding trust and friendship in each other, and being noted by Zane by the end of series as becoming more than just friends.
 * Jay Valentine: As a fellow previous member of the Church, Jay and Kieron have an already established friendship, as they both respect each other's power and abilities as a mage

Trivia

 * Kieron's assassin name, Lagann, is taken from the popular anime franchise Gurren Lagann
 * Throughout the course of the series, Kieron makes numerous references to popular anime series such as Fairy Tail, Dragon Ball Z, and Bleach
 * According to Kieron, his ADHD makes it hard for him to focus when using his Time Magic and Speed-Burst Magic
 * It's stated by Zane that whenever Kieron is off-duty, he's either reading the latest chapter of his favorite manga series, or the latest episode his favorite anime