C330 Phantom Screen - Rule

Directly in front of each of these four areas was a sign that said ABCD.

It was probably the division mentioned by the teacher at the foot of the mountain.

Group D is the red area.

Lee Yixuan felt that Group A was the strongest group, and then the BCD group also ranked the strong and weak.

It seemed like Lee Yixuan was deemed to be the weakest among them