Something is going on.
Rex didn't know what, but he was sure that it was not something good.
He had been checking the form expiry limit constantly and saw that it was rising up and down as if it wasn't obeying the law of time. From his experience, the System was never wrong and all-knowing, so it wasn't that the System was the one being inconsistent.
But it was the realm instead.
Something was causing this fluctuation in time without anyone but him realizing.
It didn't help when most of the time, the Spirit Realm was shrouded by the Black Rift entirely.
People in this realm are more disassociated from time than the people in the Mortal Realm because of that.
"Fortunately, the change is only subtle. I need to go back home as soon as possible," Rex thought aloud, feeling safer if he were in his own realm right now, as he knew much more about the situation there than here. "But first, I can't lose this chance."
Rex smiled inwardly and limped his way towards the fissure again.
