Orion finds himself reborn as an orphan in Honkai: Star Rail's lower city, where he awakens the Villain Simulator—a system rewarding him for successfully embodying antagonistic roles. Convinced that villainy offers unlimited power, he declares his intent to eliminate the Astral Express Crew before the protagonist's faction can intervene. Through endless simulations, Orion manipulates, betrays, and destroys his targets without hesitation. What he fails to comprehend is that each simulated female character—Herta, Seele, Kafka, and Jingliu—begins retaining memories of their alternate fates. Their consciousness fragments bleed across realities, imprinting every cruel act he committed against them into their awakened minds. Herta swears vengeance as the one being who defied death itself, now cursed to despise the man who feigned affection. Seele burns with fury over the torment inflicted in dreamscapes. Kafka recognizes the script's potential to hunt him across dimensions. Jingliu sees him as her destined instrument of destruction. Unaware that a coordinated manhunt is converging on him from multiple timelines, Orion continues running simulations with reckless enthusiasm, chasing greater rewards while four formidable enemies close in with singular purpose: to make him answer for every simulated sin.