InuT-tan is a compact, dynamic figure with a friendly, mischievous expression. The sculpt captures the charm of the OS-tan universe by giving InuT-tan a short, fluffy canine-inspired silhouette paired with sleek mechanical accents. The color palette blends creamy ivory with soft tan highlights and accents of electric blue on her eyes and accessories. She wears a tiny, stylized headset and a collar with OS-logo motifs, hinting at her role as a loyal companion to a long-running operating system. The base resembles a circuit board motif with subtle chip details, providing a stable yet thematic foundation. Every joint and seam is crisp, with subtle shading to emphasize fur texture and fabric folds in her outfit.

Within the OS-tan universe, InuT-tan is depicted as the steadfast guardian of aging software. Born from a late-era operating system built for reliability, she embodies loyalty and a drive to keep old ecosystems running smoothly. Her story follows updates and patches as adventures, facing bugs and glitches in a cheerful, cat-and-dog dynamic with newer OS-tan allies. Despite the rapid pace of technology, InuT-tan champions compatibility, teaching younger models the value of stability and incremental improvement. Fans follow her journey as she helps collect rare OS tools, navigates blue-screen labyrinths, and negotiates peace between nostalgia and progress, always protecting data and user peace-of-mind.