It was common knowledge that every graded Secret Realm would give birth to a Nature Spirit.
It was like a manager of the Secret Realm that stopped the natives of the realm from killing each other until they all went extinct.
It also protected the rare resources until they were fully matured, so that the natives could consume them to grow even more powerful and protect the secret realm from invaders.
In short, without a Nature Spirit, the secret realm wouldn't last long and would eventually be destroyed.
As for the Greenfire Realm, it was definitely a graded secret realm. In fact, when Ethan first entered the secret realm, he learned from the system that it was a Grade 3 Secret Realm.
'What? There is no Nature Spirit for the Greenfire Realm?'
So, hearing Fenon's words, Ethan was shocked.
"That's right!"
Fenon nodded and explained,
