Talk:Arisa/@comment-38878563-20190414061722/@comment-10330822-20200529011113

You get the Demon Lord title once your soul vessal breaks because of Unique Skill overuse. The more you use the skill after that the worse the condition gets.

In Shin's case, Satou used his black left arm to remove the God's Fragment and then repaired the soul vessal using elixir.

In Arisa's case, her vessal was repaired but she retained her God's Fragment. So she was technically still a Demon Lord, and Satou used Primeval Magic to fix her appearance, just like he did with the Weasel Emperor.