"Zenitsu respected and loved you so much. Whenever something good happened, you were the first person he thought of. Mr. Kuwajima treated you like family and taught you everything he knew without holding anything back.
And Mr. Himejima took you in when you had nowhere to go. He treated you like family, too.
Why did you betray them? Why did you abandon your humanity to become a demon?"
Chiba Yo felt as though the anger in his chest was about to spill out of his body.
He could already imagine how heartbroken Zenitsu and Jigoro Kuwajima would be if they learned about this. Jigoro Kuwajima in particular, as Kaigaku's trainer, could even be required to pay with his life under the Corps' rules for his pupil's betrayal of the Demon Slayer Corps to become a demon.
Chiba Yo could not understand it. He knew what it meant to repay kindness with betrayal, but he had never imagined anyone could be this utterly devoid of a conscience. Kaigaku would bring death to everyone who genuinely cared for him, without retaining even a trace of goodness.
Calling him selfish was no longer enough. Even self-serving people generally would not harm others, yet Kaigaku could sell out his benefactors for his own sake without the slightest hesitation.
He was pure evil, so evil that it was enough to make someone sick.
"Shut up! What do you know? Zenitsu Agatsuma and that old bastard both deserve to die!
Zenitsu Agatsuma is useless! All he does is cry all day. He doesn't have an ounce of self-respect or perseverance.
But that stinking old man actually wanted me to inherit Thunder Breathing alongside that useless brat! And he spent so much time on him, too. He was nothing but a blind, senile fool!
And that blind