lol that sucks for Ryner. I can kinda understand Sion, he does have the responsibility of a king, and he can't just let a walking time bomb roam the continent freely after what he witnessed in episode 3. Maybe he gave that order so that he can avoid the guilty feeling of not taking all the steps required of a king? Or maybe he hates Luke, and hopes berserk Ryner would finish him off
Either way, I wonder how Ryner would react to Sion when they meet again? Maybe in the next episode?