Each person with a snowboard, three people tied together with a rope. Lin Wu set off first, followed by Nightmare, and then by Shana. At the start, the speed was off, Lin Wu constantly tensed the rope, clearly Nightmare was too slow. After Nightmare sped up, he found his rope being pulled tight, obviously Shana was too slow. Eventually, Lin Wu progressed at Shana's pace, Nightmare cooperated to control the speed, and the three smoothly reached the sewer.
First, they used medicine to deal with the frostbite, waited a few minutes, and after confirming everyone could be in the sewer without getting frostbitten, Shana started to concentrate on studying the sewer blueprint posted at the entrance. The blueprint didn't specify the names of each exit, so they needed to check them one by one. Starting with the nearest sewer exit, the A exit which was 3 kilometers away in a straight line.
