The academy arena was called the Tournament Stage. The competition platform was also a veritable historical building. Its appearance looked like a huge enclosed building. The surface of the building was decorated with glass slag and long glass strips. The sunlight reflected the colorful lines. It could surely be regarded as a very avant-garde architecture.
There were only one entrance and one exit, and the internal structure was very simple. The entrance and exit were in the opposite position, and the competition platform was in the very center of the whole building, which was the middle position between the entrance and the exit.
The four entered the entrance and went through a long passage like that kind of large air-raid shelter on the arc-shaped vault.
