Let me state in advance that this article is from YY's work when I was a child. Although it is GL, it is not just about the love between two people, and it has nothing to do with real life. If you want to watch a light love comedy, please be careful. In addition, this article is a big mistake, although the author has a grudge to complete it... So... In short, please proceed with caution... The following is the introduction of the article:
In 20XX, the awakening of the Demon King caused Hell to come to the world early, and the heavenly army was defeated. The Demons occupied the entire earth world in one fell swoop. Due to the emergence of the Demons, many unknown races also appeared in turn. Humanity retained some technology, but the overall society regressed significantly. In short, it was almost the same as an ordinary fantasy world... Then, more than 1,000 years after the Demons occupied the upper world, a child (soon no longer a child) appeared^ ^