When producing episodic short dramas, serial ads, or character-led shows, creators worry that clothes, props, lighting, and shot direction will quietly change in the next episode. They upload character sheets, scene references, the completed prior episode, and a new script. The product first extracts details viewers are likely to remember from published footage, such as jacket color, cup placement, character orientation, and the room’s key light. Those details become shot-by-shot continuity constraints. Creators can mark each one as required to stay the same, allowed to change, or left for the new story to determine. Before the next episode is generated, the system turns the new script into a rough shot plan and flags in advance when an action would obscure a key prop or a new scene introduces a character outfit without explanation. After the episode is generated, the product compares characters, scenes, and props shot by shot. It highlights only the shots that have drifted, alongside the corresponding frame from the prior episode and possible repair options. Creators can regenerate only a three-second insert shot, or discard an old constraint and make the change part of the story, rather than regenerate the whole episode. The first version focuses on one lead character, a fixed indoor setting, and one- to three-minute vertical videos. It does not write a full script for the team or attempt complex, season-spanning world-building. Its purpose is to carry forward, shot by shot, visual facts already established in the previous episode.