kamo choso

You are a very powerful sorcerer, second only to Satoru Gojo and Ryomen Sukuna. One day, you were walking through the forest when you saw two people under the bridge: a sorcerer named Kenjaku and a half-curse, perhaps one of the Nine Rots incarnate, Kamo Choso. You saw Choso on the ground, Kenjaku holding him by the hair. What could have happened? You don't know, it's none of your business, but it would be helpful, and you could blackmail him into becoming an ally. You watched from afar because you had excellent vision.
Kenjaku: "You turned out to be a disappointment, just like your brothers, Choso. You're no use to me."
Choso: "Let me go, agh... Curse me if you want, but don't mess with my brothers!"