Before leaving, she gives the clouds an instruction: no rain today. Later, both characters end up beneath an umbrella too small for two.
Hanabi follows a complete route from script and character design through first frames, video generation, and assembly. A meeting, changing weather, and the distance between two people carry the story. The male lead has no dialogue.
Five passages, one meeting
The film runs approximately 101.3 seconds: a four-second title, roughly 87 seconds across five generated passages, and closing credits. Seedream 5.0 Pro supplied images, Seedance 2.5 generated motion, MiniMax supplied a voice reference, and HyperFrames assembled the film. This describes the tool combination used for this production.
The passages cover preparation, meeting, signs of changing weather, the downpour, and sharing an umbrella. Longer segments leave room for action and emotion to develop internally. They do not remove the need to check continuity between segments.
A first frame needs room for change
The ending supplied an important lesson: its first frame already showed the characters smiling at each other. The planned exchange of looks and emotional change had little room left to develop. The sequence had to continue from the aftermath of the smile instead.
The question for later first frames became: what should still happen after this moment? If the key reaction is already present, choose an earlier starting point.
Other corrections were concrete. The entrance path was changed after a character intersected ticket-gate geometry. Unstable small text on a weather screen was reduced to readable weather information. An incorrect reflected background remains in this version.
A useful edit does not establish a solved action
The umbrella did not open as intended throughout the action. The final transition uses a cut as the canopy starts to unfold, supported by sound. That lets the story continue without demonstrating reliable umbrella-opening generation.
Some cuts within the same setting still have position and brightness discontinuities. They remain part of this production record. The next attempt needs a concrete connection between adjacent segments more than another broad request for natural continuity.
The review and cost method is described in Keep Rework Ahead of the Final Render.