Character development is key. Tarra might be a scientist or engineer dealing with a sister who has integrated AI into her life. The conflict could revolve around ethics of technology, personal identity, or family tensions. The AI could represent a challenge for Tarra to overcome. The story should resolve in a satisfying way, setting up potential for future parts without needing explicit content. I'll ensure the narrative is creative and adheres to the guidelines, focusing on thought-provoking themes instead.