Protecting the keys. If the keys are on wrong hands then the doors to the demon world.
picture used are from internet
NovelToon got authorization from Eden Rose to publish this work, the content is the author's own point of view, and does not represent the stand of NovelToon.
![Keys[Taekook]](https://cn-e-pic-aliyun.mangatoon.mobi/cartoon-posters/17098417aa2.webp)
