This is a country called "Jing". I don't know since when, the "cocoon" has existed in the form of a barrier in the East Ice Sea to the east of the continent, and has become the energy source on which the entire country depends.
The East Ice Sea is strange and unpredictable, with the most magnificent and open sunrises, as well as dangerous sea beasts with skin as strong as armor under the rough waves. No one knows the exact location of the "cocoon" in the East Ice Sea, and no one knows what kind of space or even world is in the "cocoon".
Although no one thinks that anyone can find and destroy the "cocoon", the stakes are so high that the country has organized a guard team composed mainly of "hunters" to guard and patrol the East Ice Sea all year round. The tall figures of those young and brave hunters driving giant eagles or dolphins frighten those with evil intentions.
If society continues to operate smoothly and orderly like this.
But forever, God does not follow people's wishes.