Paedyn and Kai work together to wear out the rope binding them together, all the while bantering and taunting each other. She asks whether he regrets everything that happened between them, and he says they can have regrets later. When the guard brings them food, Paedyn and Kai, now unchained, knock him unconscious. Stealing his keys, they run to the nearby sewer grate and jump into the sewer. Running through a filthy tunnel, they realize that the water is rising fast. Eventually, they become trapped. Unable to find an exit and seeing that the water level is still rising, Kai and Paedyn think they’re about to die. In the heat of the moment, they confess to each other that they have no regrets and kiss one last time.

As the water rises, Paedyn tells Kai she can’t swim, so he asks her to hold onto him so that he can keep them both afloat. She then notices a partially obscured grate above them. Together, they open it with difficulty, and Kai, who can see that Paedyn is weakening, pushes her out of the tunnel.