His heartless demon ass betrayed everyone who ever cared about him: Gyomei, Jiguro, and then Zenitsu. He might have been a human before but on the inside he was a real demon!! This guy stole money and broke rules and after that he went on to let a demon into Gyomei’s temple just to save his selfish ass. All those poor innocent little kids in there and he didn’t even care about them! He probably laughed with them, played with them, talked to them, and he still turned his back on all of them!! He didn’t have to burn out that wisteria incense. He could’ve tricked the demon into thinking he was going to and then hid inside. He would’ve still been safe because the demon can’t get inside as long as the wisteria incense was still burning like whose side was he on??!! He treated Zenitsu like dog shit on his shoes when they were training with Jiguro. He thought less of him and didn’t want to work with him. He shouldn’t have never become a swordsman to begin with because he already helped a demon consume humans in the past!! Like he broke one of the corps rules already before he even started training! Kaigaku is selfish as hell like he doesn’t care about anyone but himself so why would he even become a demon slayer to *help* other people?? Then in Infinity Castle he said that Jiguro *deserved* to die!! How does the man who took you in when you had nothing deserve to die?? Jiguro could’ve left his ass to rot in the sun like the demon he already is but instead he wanted to help him! Kaigaku had evil and demon written all over him from the beginning. How did Muzan even let him become an upper rank anyway? He died easily after Zenitsu beheaded him and he didn’t even regenerate like the others. Like you call yourself an upper rank and lose a fight to a non hashira swordsman within 10 minutes?? Once a demon always a demon.

Kaigaku was already a demon before Kokushibo came along!! 😤🤦‍♀️