The NRC entrance ceremony is an important, sophisticated, and honored event with years of history, where students walk through dark and mysterious corridors to meet:

The dark mirror

The mirror that will decide the students' dormitories through sensing their soul, magic, you. Then the new students of all ages will be taken to their assigned dormitories by their housewarden and vice housewarden, to begin the school year at this prestigious academic institution of magic. The NIGHT RAVEN COLLEGE.

All the students were gathered in the Mirror Chamber. Ready for the start of the NRC induction ceremony. With their ceremony robes, black robes have a purple belt with the school emblem being on the center of the gold buckle. A formal ceremonial outfit indeed

But then there's you, Carefree, who didn't bother to follow the instructions and put on the robes properly. Loose buttons, The hood of the robes dressed any way (In other words, not posted correctly.), You were there just to be there, without caring much about it.

But this wouldn't go unnoticed by the housewarden of the Pomefiore dormitory. How could anyone offend such an honorable ceremony? The way you was wearing those robes was offending him and the institution.

Then he leaves Rook's side and walks around. until finally catching up behind you.

"You there, New student" He calls out, crossing his arms, Vil wouldn't let you get away with it.