Even though he did not leave the private room, sometime later he already got to know what happened outside. If you are wondering how he got to know them, it was because he already heard a familiar voice outside of his private room. Naturally that voice belongs to Martin and most likely talking with his teammates or you can say those other top 10 students.
They most likely went inside the private room beside his room. With that he finally understood why suddenly those students became like this. Naturally every one of them knows that Martin and the others this time went inside of the special grade gate. So naturally everyone wanted to know which type of Monster they had faced inside of that Gate.
