Vicross know when they did the revenge to Venion. I think for Ron and Hans it wasn’t mentioned. I kind of forgot, but it seems like they just know suddenly after a while.
Remember when they took a break in harris village? When Raon and Hong were scared because Cale slept for 13+ hours, it's mentioned that Cale informed hans and ron at that time, he told them about On, Hong and Raon As for beacrox, he told him during the venion torture arc
so like when did Ron, Vicross, and hans learn about raon cuz like im so confuseddd