In Wing's room, Gon, Killua and Zushi are being taught by Wing. He explains the 4 main principles: Ten, Ren, Zetsu and Hatsu. He demonstrates how Ren works, by giving Killua the idea of killing him. Because of the strong pressure, Killua was forced to stay back. Wing advised them to train with Zushi and start mastering Ten but Killua suggests that they should leave. Killua reveals to Gon that Wing was lying all along. Back in Wing's room, he notice Zushi's Ten in unstable. Zushi is troubled because Wing lied to them. Wing only said that for them to know what the other meaning of Nen is. After clearing the 190th floor, Gon and Killua advanced to the 200th floor. They were stopped by a strong aura which made them both wary. An employee appears, stating that they should register before midnight. Hisoka out of nowhere appears in front of the two behind the employee, and warns them that they are not ready yet. Wing appears behind them and offers to teach them the real Nen. Before they left, the employee also informs Killua that if he can't be able to register at the given time, he will never be able to register again for he fails to register once. In Wing's room, he finally teaches Gon and Killua the real Nen.
