Scene 018 — Nguyễn Trãi historical story video.
Narration context: Năm 1407, cha con Hồ Quý Ly bị bắt. Nguyễn Phi Khanh, cha của Nguyễn Trãi, cũng bị giải sang Trung Quốc.

Use the input reference for the exact locked design language: MỰC LOANG KỂ CHUYỆN.
Full canvas: 16:9 horizontal warm antique cream paper, never pure white, never cold white.
Composition: one central irregular ink wash / mực loang storytelling window, centered, occupying about 65% of the full canvas. The illustration/action must be contained inside this ink-bleed window. Keep visible warm cream paper margins around the window. Not full bleed, not edge-to-edge. No characters or scenery floating outside the ink window. No huge empty blank space inside the ink window.

Scene content inside ink window: 16:9 horizontal cream-paper sparse Vietnamese historical storybook illustration, warm cream paper background, brown ink outlines, light transparent watercolor, muted earth tones, airy composition with 30-40% blank paper visible, Hồ dynasty crisis and father Nguyễn Phi Khanh being taken north, Nguyễn Trãi at a sorrowful farewell road, authentic Vietnamese fifteenth-century clothing and architecture
Vietnamese Đại Việt 15th century historical grounding, authentic Vietnamese clothing/architecture, delicate brown ink linework, soft transparent watercolor, muted earth tones, old storybook feeling.
Negative: no pure white paper, no cold white background, no text, no readable writing, no subtitles, no watermark, no logo, no full-bleed background, no photorealism, no 3D, no anime, no modern objects.