There are three variants to Chūya’s anger.
The first one, the most common, is the one he expresses against enemies, whether they’re his or the Port Mafia’s. It’s ruthless, and brutal, and rightfully confident. It’s quick and efficient, as well, and never lasts long, fading at the same time as the enemy does. It’s the one that can be avoided, as well, if no provocation riles him up.
The second one is louder, but also much less violent. It’s insults fusing from his mouth, and he means them, but not as much as he believes he should. It’s him throwing a punch or a kick towards someone who he trusts will dodge and laugh in his face. It’s being annoyed, yet oddly at peace with himself, because for once, the one in front of him can stand his ground against him, as inhuman and unnaturally strong as he is.
The third one is cold in appearance, and silent. It’s barely hiding how his blood boils in his veins, barely contained. It’s him clenching his teeth, digging nails in the palms of his hands, doing anything to bury it deeper. It’s excruciating and makes his guts twist and his lungs burn, and it would be oh so easy to let it all out. He doesn’t, though.
Because in a bitter twist of irony, the only person who could ever stop him if he did is, precisely, the one whose betrayal caused it.