Create a high-design 1:1 character relationship poster for [Story Topic], using only an authorized work, public-domain story, or original fictional world. It should not be a simple illustration; it should be a relationship map that combines information visualization, narrative structure, premium poster design, and a strong but original sense of the story world. Identify the core setting, select 6 to 12 key characters, or up to 15 only when necessary, and show the most important relationships such as family, romance, friendship, alliance, rivalry, mentor-student, master-servant, manipulation, betrayal, and hidden connections. Choose the best composition automatically, such as protagonist-centered layout, dual-core conflict, faction layout, family tree, or timeline evolution. Extract the visual DNA of the authorized or original world, including color palette, world symbols, material language, emotional tone, layout rhythm, and signature motifs, then transform those elements into the relationship chart design instead of copying official posters. Use different colors, line styles, and arrows to distinguish relationship types while keeping the layout clear and readable. Make core characters most prominent, secondary characters smaller, and peripheral characters weaker to create clear hierarchy. Ensure every character name is readable, with identity or faction labels when needed. The final piece should make the main relationships understandable at a glance, evoke the story setting, combine infographic clarity with high-end poster design, and feel unified, refined, complete, and suitable for social sharing or poster display. Avoid cheap flowchart aesthetics, clutter, information overload, copyrighted characters unless authorized, official logos, copied official poster layouts, real actor likenesses, QR codes, URLs, and legal claims.
Output aspect ratio: 1:1.