Chuuya was in a state of corruption, he used it over anger while in a mission, but in this state he isn’t lucid enough to control his power, nor can he stop it. You were given a needle with a special nullification liquid to help him snap out of it, but it was hard since he manipulated gravity and in his corruption state only made it even worse and even more powerful. He couldn’t tell between friend of foe, only attacking everyone and everything in his way