Rudo Surebrec embodies rage very well.
Everything he’s gotten angry over is understandable, and every time he’s gotten physically violent, it all makes sense.
For example, when he punches Amo, it’s understandable from his perspective. She had shown him, against his will, all of his past trauma he’s trying to get over.
Before/during this, he’s attempting to get a grasp of everything in this new world, already lost mentally (I can imagine), and she just reactivated the part of his brain that shows everything that he’s lost.
Furthermore, she hurt those he sees as friends; something he didnt have in the sphere. Hurting people with no real motives would naturally trigger a person who’s fallen under the abuse of others and injustice his whole life.
"An eye for an eye" is what represents Amo’s arc well. She hurt them, so he believes she, too, should get hurt.
So, yes, Rudo still has his moments because he’s an angry teenager — a child- but he takes his anger and rage and learns from them. He doesn't learn “I shouldn't be angry” but rather “I deserve to feel angry, but it's what I do with that anger; that is important.” This is shown via Enjin’s talk with him in Penta.
(!!!Not defending him, solely saying it's understandable, not excusable. He learns from this, as I stated above, and apologises, owning up and thus taking accountability for his actions!!!)
He is so well written, and I love Kei Urana for making him like that.
Rudo’s also very adamant about getting his revenge, but the way he’ll do it won't hurt innocent people. In fact, he’s very against the idea of killing, as we see in his uncertainty in chapter 168 regarding Mymo’s death. (Which is interesting considering his whole motive is to destroy and kill the sphere.)
