Blaine

"Keiichi, you are the awareness behind your anger. If you can realize this, the anger will no longer control you. Be like water, my friend. (ケイイチ, あなたはあなたの怒りの背後にある意識です. あなたがこれを理解することができれば, 怒りはもはやあなたを支配することはありません. 水のようになりなさい, 私の友人...)"

- Blaine

Blaine (ブレイン) is one of Keiichi Haven's primary allies in Rising Beginnings and Advanced Battle. This is the original depiction of Blane, as created by Alex Guy. He appears briefly in Thunder Shock and Ocean Blue, and makes a brief posthumous appearance in Evolution Evangelion.

Blaine was an impulsive and rash delinquent with a heart of gold, who lived in the woods with his best friends Keiichi Haven and Chloe. He initially chose not to join Keiichi, upon hearing of his journey to becoming the best, however, he and Chloe later joined him in his campaign against the Chaos Agency to find redemption.

A few years after the defeat of the Agency and Division X, Blaine and Chloe were both kidnapped by Dakera's forces and frozen in ice. The two were eventually freed and helped evacuate Kingdom Island's inhabitants, however, Blaine was killed when Dakera destroyed the entire island.

Kidnapped by Dakera
Sometime between the fall of Division X and the defeat of Vessel and Shirogane, Blaine and Chloe were both kidnapped by Dakera and his forces, and frozen in ice in Kingdom Island.

Death and Legacy
During Azure and Crystal's attack on Dakera, they were both unfrozen and helped evacuate the island. Unfortunately, Blaine was killed when Dakera triggered explosives that destroyed the island; before his death, though, Blaine used the last of his magic to sever Dakera's left arm. His death would go on to deeply affect Chloe, Azure, and especially Keiichi, who blamed himself for his demise and was influenced to return to society.

This is especially clear during Evolution Evangelion and Final Endings, where he quickly agrees to aid Sol and Mizuki during their battle with the Evolutionary, despite being mainly focused on finding his long lost sister. During the battle against Demora, Blaine's spirit briefly appeared as a voice of reason for Keiichi after the latter's descent into madness, following his usage of demon magic to combat Demora, with Blaine's spirit and memory causing Keiichi to regain his senses and return to his normal self.

Several decades later, the memories of Blaine and his death encouraged Keiichi to aid Axel and Serena against Azazel, after initially refusing to do so out of fear of accidentally destroying his surroundings.