I think he did not kill Asil.
But they made Roxxy kill her after showing her hallucinations that he was tortured and killed so she killed him in a merciful way.
no i’m almost 100% sure that dion killed her brother asil *srry if i spelt that wrong* and when she was put into the hallucination room thing (yknow how asil died because he couldn’t complete his task in the hallucination room place) roxana’s task was to kill her already dead brother who was a hallucination (again, srry if this doesn’t make sense)
(〜￣△￣)〜 ahhh we will see as I get your point too. That chapter was a little confusing so future chapters will tell.
Bro girls will fall for dion more than the silver hair but since ana said no im gonna say no too (it would've been good if he hadn't killed asil, i liked him)