In fact, Han Fei knew that there was no problem with Hongjun. He should be a friend but not an enemy, but he couldn't take the risk.
Therefore, Han Fei's question was a trap from the first sentence.
From the beginning to the end, he only wanted to ask the first and last questions.
He asked Hongjun if he could open the passage between the two worlds now. Hongjun's answer to this question must be true and correct.
Han Fei just made use of the information gap, because Hongjun didn't know what Han Fei knew from the opening in the Sea of Stars. He was afraid that once he said something wrong, he would immediately become Han Fei's enemy.
However, this answer was actually not beyond Han Fei's expectations.
This was because if there was something wrong with Hongjun and he had already fallen, if he could open the passage between the two worlds, he would have done so long ago. Why would he wait until now?