Bilibili has released the first promotional video for "Aliens Among Immortals," an original net animation set to premiere in Winter 2026. The trailer offers a glimpse into the series' core conflict: an assassin and a holy maiden, ordered to marry for sect benefit, discover they are both immortal on their wedding night. This revelation sets the stage for a deceptive relationship as they seek powerful artifacts from each other's factions. The synopsis suggests a narrative blending action and fantasy as the protagonists, Jiang Yuan and Shao Yue, navigate their forced union while secretly plotting to steal crucial sect treasures. Their initial animosity is expected to evolve amidst this charade, promising a dynamic of betrayal and potential alliance within a historical martial arts setting.