BO unintentionally discovers YAT's plot in invading China, he feels very disappointed with YAT. BO is determined to collude with YAT falsely so that he could wait upon a chance to destroy his plan. TAI understands BO a lot and tries to question him the truth. However, BO squabbles with them and even hurts KWAN in confusion. Everybody feels very disappointed with BO. KWAN stakes all on a single throw and risks her love as the wager. She expresses that if BO does not repent what he had done, she will marry TAI. In order to destroy YAT, BO is forced to advantages on KWAN. KWAN feels very heart-broken. TAI has known that KWAN stil1 loves BO a lot and does not want to take advantages of circumstances. Thus, TAI does not take advantages on KWAN. KWAN is greatly affected with his gratitude. BO has known the route march of the Japanese invading the city. He prepares to destroy the route, YAT will then split with the Japanese.
