When Arren gradually immersed himself in the dream, Ms. M, who was supervising him, stood by his side. A few seconds later, she tried to call Arren's name, but he wouldn't answer.
Ms. M immediately knew something was wrong, as he couldn't communicate with Arren. In this state, it was possible to ask his patients what they were seeing in their memories, and this also gave them the sign if they needed to wake them up.
However, Arren was really a special case, as he began to be thoroughly immersed in them. At first, Ms. M only observed him, but as he began whimpering from what he was possibly seeing in his memories, she now began to be nervous.
Something was different while she tried to wake Arren. If this continues, she would have no choice but to inform His Majesty about what is happening.