High above planet Melkia, Albert Killy listens to Arron and Gurran, two scientists studying the PS, speculating on what must be happening in the civil war below.

Holding Borough at gunpoint, Chirico questions him. Ypsilon arrives, but cannot intervene. Borough explains that the Secret Society brought the PSs here to try and perfect them; their emotions have proven too erratic, and have constantly interfered with their efficiency as killing machines. What's more, they can never be remade into normal human beings. Kiderra attempts to attack Ypsilon from behind, but fails at the cost of his own life. His move disrupts the scene, giving Ypsilon the chance to attack Chirico. Fyana can only watch from her AT as the two grapple and fall from level to level down into the bottomless mineshaft.

Outside the palace, Gon Nu gives the order to move in. Behind them, a third party prepares to enter the fray: the Melkian army. Lead by Rochina, their orders are to overwhelm the palace and destroy everyone in their way. Only the PS Prototype is need alive. Unaware of this new development, Vanilla finds Potaria, who passes along the key given to him by Kanjelman.

Chirico and Ypsilon land at the bottom of the mineshaft, which is full of oil and priceless jijirium. Both their ATs have been damaged, so Ypsilon leaps out and challenges Chirico to a hand-to-hand fight. Fyana appears in her Brutishdog, and when Ypsilon refuses to stop, she fires on him. He is furious at her final betrayal, but the scene is broken by the laughter of Gon Nu. Peering down from above, he proclaims victory. Now that Chirico is of no further use. Gon Nu will destroy him along with everything else.

Rochina, however, has already begun bombing the palace from outside. Suddenly, Gon Nu himself has become expendable! Chirico and Fyana escape as the palace begins to crumble, and Ypsilon is left standing alone as Borough dies in the fire.

Chirico and Fyana find Vanilla, who gives them Potaria's key. It will activate an escape shuttle, and Vanilla wants them to flee in it. At the last moment, however, the insufferable Kan Yu appears and prepares to finish Chirico off once and for all. Shako intervenes, having finally decided his commanding officer isn't worth following any more.

Their enemies now dealt with, Chirico and Fyana launch in the shuttle, just in time to evade Melkian Scopedogs. They burst out of the palace and into the open air, their future opening up before them.

"My journey through Kummen was at an end. For my own sake, I had chosen to enter hell. For Fyana's sake, I was now leaving it behind. Love? could it be even I was capable of fighting for love?"