In this episode, a battle brews between the Immortal Order and Liviuman, fueled by an ominous pair of rocks. Maru and Kiruko, led by Usami, encounter a horrifying sight—a patient on the verge of transforming into a monstrous creature. This unsettling revelation connects to the man-eaters and suggests that they were once humans who succumbed to a relentless, incurable disease.

Usami's plea for Maru to care for the patient despite the immense burden reflects his desperate search for a solution. When the girl expresses her wish to see the sky one last time, Maru and Kiruko insist on fulfilling her request. Yet Maru finds himself in a moral and emotional dilemma as he grapples with the reality of ending a human life.

The patient's final message brings some comfort to both Maru and Usami. After the skirmish, the advance of the Liviuman forces the clinic's inhabitants to evacuate. Usami plans to stay behind and arrange a proper farewell for the girl, now named Hoshio. For Maru, however, surrender is not an option; he must endure, with Kiruko offering him her support.

The aftermath of the conflict reveals hidden complexities about the Immortal Order and Liviuman, hinting at the possibility of karmic consequences. Though Kiruko searches in vain for information about the doctor, she recognizes the person in the remaining photo as "Inazaki-sensei." This ignites her determination to track down Robin, despite the potential emotional turmoil it may cause Maru.