Once all the successful candidates had gathered, the second test began. However, the Test Director makes a strange proposal to Viole, who passes the test with top marks.

In the test on the 20th floor, the examinees are supposed to form teams and capture rooms. However, trust is a rare resource in a world that rewards betrayal.

Both Khun's team and the team of Wangnan and Viole continue to climb the tower, facing the necessary trials along the way. In the process, they discover a new tool: the increasingly popular chat AI, Emile.

Khun learns the truth from Hwaryun and decides to join Wangnan's team in the Workshop Battle. Meanwhile, Bam remains on Team FUG as Viole.