One of the five Brothers of the Giant Clan, Son of Chronus Vlaston.
 
Kagrin grew up under the shadow of his father, being the oldest he also had to be the toughest of his brothers, and he was constantly under pressure to be stronger and to know the ways of the clan.
 
Kagrin originally was a proud son, taking on the mantel of the clans best warrior, he knew how to wield a sword like no other, but when he started to research new ways of fighting, learning, and overall living his father became increasingly aggressive as these were not the traditions of the clan. As he became more and more involved in research, and becoming better his clan slowly started resenting him, and treating him as less than them. Coping with his brothers being kicked out of the clan and leaving, he began to research methods of which he could find them again.
 
One day Kagrin attempted to show his father the places his brothers may have ended up, causing Chronus to fly into a rage. Chronus threw Kagrin in the fighting ring and challenged him to a duel, if Kagrin were to fail, he would be kicked out. When Kagrin lost, Chronus looked upon him with disgust, and Kagrin was thrown out from the clan, threatening death of he were ever to return.
 
On Kagrin's journey down south, he was avoided by most villagers due to the violent reputation of giants. Eventually he met a man named Silver who befriended him. Shortly after a Werewolf attack occurred, resulting in Silver giving Kagrin his blade telling him to give it to a man in Nasilah, where Kagrin joined an adventuring group that would become the Terrasque Slayers, where he started his real journey.
 
During this group Kagrin found a genetically modified giant spider which Kagrin immediately loved, taking it as his pet and equipping it with a shotgun. Kagrin also was bonded to the Holy Mythril Blade Omen, which he keeps with him now. After throwing Voight straight into the beam of Erebus and fighting the god of hatred Shadir - God of Hatred at The Well to cause the Ereburst; when the fight was over, Kagrin parted ways with his friends and went on his journey to unite his brothers.
 
On this journey Kagrin became a Lich, so that he could ensure that he would have time to succeed his journey without dying in the process. Soon after the transformation, he was ambushed and his body torn to shreds, upon waking up his spider was gone.
 
Kagrin, still looking for his family eventually met Whis Luxord-Vlatson and joined her in their journey to The Abyss to join the Raiders of the Abyss to find his brothers. He temporarily joined Zulex's group in the interest of protecting his family, but turned on them once Holvir Vlatson came to his senses.
 
He spent years traveling the Abyss performing work for the Archfiends dealing with unruly souls in exchange for autonomy. When finally released, he and his connections to world shaking events convinced Myzilith the Chronicler to sire a son with him, Athrun and after many years living a simple low-profile life, began an unlikely relationship with Ezmerelda d'Avenir as he was uniquely qualified to help someone learn how to live on the material plane again. 
 
He was kidnapped by his son when The Nothing War began and attempted to bring him to reason, before helping a group to steal his godhood to end the madness. Together they stemmed the tide of the Deep and saved the world.