The top four fighters in the preliminary have been decided. With her semifinal match against Daewi drawing near, Mira is suddenly approached by Oh Seongjin, a martial artist and successful businessman, with a marriage proposal. She agrees to marry him in exchange for his promise to restore her family’s dojo and spread the Moon Light Sword Style around the world, but marrying him means she must withdraw from the tournament… and Mori and Daewi are not okay with this.

The team led by Park Ilpyo, one of the participants considered a top Key candidate, faces the team led by Gwim Gi. Gwim Gi calls upon his charyeok, Jack the Ripper, but Ilpyo uses his antiquated taekkyon fighting style rather than relying on charyeok. Meanwhile, Daewi is suspended from the competition after interfering in a match and hitting Taek. Mira scolds him, but Mori seems distracted. Something he sees on Ilpyo's back looks familiar...

When he learns of Nox's existence and their role in Jin Taejin's confinement, Mori swears to win the tournament and save him. But his opponent, Ilpyo, also has a good reason why he can't afford to lose. Four years ago, Seungah's sister and Ilpyo's cousin, Seungyeon, had her leg broken by Jegal and had to give up martial arts for good, and Ilpyo has made up his mind to become cold-hearted for her sake. Meanwhile, Feilong, whose attack on Mori failed, is eliminated... as Jegal wears a cruel smile.