In the second year after Levi met Kenny, one day, he brought back a little baby named Cooper. Levi, who had a mysophobia, and Kenny, who was not so popular, once disliked him very much. But fortunately, they did not abandon him. After Kenny left, they were the only ones to rely on each other.
The first time Cooper saw Erwin in the underground street, he became more determined to stand on his side. But when the guy named Miko pushed his brother's head into the puddle, Cooper felt so tired.
When his brother Levi was successfully dubbed "The Strongest Human Being" by Erwin and started operating, Cooper was still committed to being the leader's personal bodyguard and secretary.
When Cooper secretly came to the training corps where the former head of the Survey Corps belonged, he found that the children in issue 104 were really full of talents, and they were all good candidates to join the Survey Corps.
When Ilze's notes were discovered, a training soldier named "Ymir" aroused their suspicion, and the truth was gradually revealed...
Kubo is ten years younger than the soldier commander and nine years older than Allen and the others.
Kubo is neither time travel nor rebirth
Cooper is also Ackerman
Cooper is shy and sweet-tongued, bold and cowardly. He likes Levi and Erwin the most, but he is timid in front of the commander. He is an expert at finding clues. He is 1.8 Meters tall, slightly shorter than the commander.
Purpose: Dedicated to changing the difficulties in the world of giants
