Following the Rules

As soon as the angel heard my question, a faint smile crossed her face.

[I am the guardian of this door, after all. Anyone who is below the 7th stage can pass through without any difficulties, but those above that level need to pass through my trials.]

"7th and below... does that apply to demons too?"

[The system was set for demons originally, but it's also applicable to anyone who wants to pass through this door, like you guys.]

"A system? You mean, you let the demons pass through regularly to the human world?"

Although we need to rush to where the others were, extracting information from this beyond-god-level angel should be just as important.

[It was made so that the demons wouldn't become too powerful. I allow those who reach a certain standard to travel to the human world and be exterminated, limiting the growth of demons here...]