I think Roxanne used her butterfly illusion so that he can get stronger..you know that you get stronger when you're hurt...so I think that how he killed her... I'm not sure tho
They all have to go through this hallucination thing. Her older brother had to kill her but he couldn’t so he died. She had to kill her older brother (remember the chapter where she was furious at Dion and said she won’t let him kill her brother again). Seems like it’s a rite of passage
Wait I’m confused. Who did Jeremy kill for the examination. Was it Roxana? Or the ml lil sister