An unlikely acquaintance becomes Tae-sang's ticket out of the hospital. After a touching reunion, Tae-sang and Chae-ok encounter a transformed Myeong-ja.

Yoon Chae-ok and Yoon Jung-won find a lead on Myeong-ja, leading them to a hospital. Soon, a calamity traps the two inside, leaving Tae-sang concerned.

Tae-sang decides to reenter the hospital, but discovers that Ryu Sachimoto is nearby. At the hospital, Chae-ok and Jung-won devise a risky rescue plan.

Reunited in their search for Myeong-ja, Tae-sang and Chae-ok attempt to also save other survivors. But soon, the monster makes itself known.

Tae-sang steadfastly remains to save Chae-ok and the captives. On a mission to find her mother, Chae-ok learns the grisly truth — and confronts the beast.

After a series of grisly deaths, Ishikawa finds Myeong-ja in her new state. Tae-sang shares a tender moment with Chae-ok, unaware of her hidden plan.

With only 10 minutes to act, Tae-sang and Chae-ok risk it all to get everyone to safety. But just as all goes to plan, one of them may not get out alive.

After coming face to face with the creature, Tae-sang and Chae-ok get captured. But as one plans his escape, the other stays to find a person dear to her.

In order to rescue Chae-ok and stop the atrocity, Tae-sang and Jung-won forge a plan. But just as the coast seems clear, Yukiko Maeda stands in the way.

Facing financial ruin, Jang Tae-sang agrees to track down a missing person — but two figures trail him. Meanwhile, sinister operations occur underground.