Rules and Regulations of Red vs. White

It was indeed the end of December. If the New World didn't descend upon their universe, everyone should be busy making preparations to celebrate the new year, but now...

"Oh no! The fog is too thick! The contestants can't see each other… We must just blow it away!" the loud voice bellowed, and subsequently, he huffed and puffed using his own mouth. The thing that weirded everyone out was that the white fog started to move gradually. Most of the fog dissipated, revealing the original surroundings.

[No, that's not right. This isn't our original surroundings...] Lin Sanjiu’s eyes widened when she saw the ground. She was standing in a large circle. There was a line in the middle of the circle, and one half of it was red while the other half was white.