When Su Yang enters the World Melting Furnace for seclusion, no one is allowed to enter his room, regardless of what happens.
Because even if those people enter his room, they can't disturb him while he's still inside the World Melting Furnace. On the contrary, if they enter his room and find he's not there, he still wouldn't be able to explain.
Although these confidants have all entered the World Melting Furnace, in fact, they always thought it was merely a space artifact in Su Yang's hands, and no one realized they'd been inside the World Melting Furnace for such a long time.
Even if Zhao Huzi has a pressing issue, when he arrives here and knocks on the door, if Su Yang doesn't respond, he can only stand outside and wait.
However, looking at Zhao Huzi's expression, it's clear he truly has an urgent matter.
