I really like how realistically weak the human body is despite the absurd magical elements in this show.

Ferris admitted that if Ryner hadn't stopped her flight after clashing with the scythe girl, she would have died (as any human should). Ferris' previous wound was also handled quite well. The guy who used the dragon relic also had to burn his arm so that he wouldn't die from blood loss after Ryner deleted it. Even with all the powers and whatnot, people still die fairly easily in this series.