2F - Submerged Fish (5): Koon explains to Lero-Ro that he was originally happy when Ho received the note since it meant that Baam stood a better chance of passing, but then his plans went awry. However, he is convinced that the note was sent by someone who knew in advance about the creation of the Hide-and-Seek test, a Ranker... Lero-Ro tells Koon that there may still be a way for Rachel to take the next test, thinking of what Yu Han Sung told him before. Yu Han Sung himself is becoming agitated and predicts that soon a wave will arise, that will shake the Tower itself...