Qin Yu tried his best, but he was still unable to do anything to this door.
This door was simple and unadorned. He didn't know what material it was made of, but it was extremely hard. Even Black Gold Stone couldn't compare to it.
"Perhaps... there is some mechanism here that can open this door?" Qin Yu thought to himself.
He immediately released his divine sense and began a search to find the mechanism of this door.
But unfortunately, Qin Yu spent an entire day and still couldn't find the so-called mechanism.
This made Qin Yu worry.
Could it be that he would be trapped here for the rest of his life?
"Forget it." After thinking for a long time, Qin Yu decided to cultivate in seclusion and swallow these inner cores.
If he was strong enough, he might be able to break through this door.
Although he didn't know what realm he had to reach to do so, Qin Yu had no other way at the moment.