VIVI is a novel software specifically developed for the purpose of Cel Shading 3D animation. Given the escalating production demands of Japanese animation, the incorporation of these new technologies becomes imperative to uphold animation quality. VIVI incorporates a novel rendering system and offers supplementary features conducive to Cel Shading, such as a distinctive model skeleton system, preconfigured facial shadows, and a 2D editing system, among others. Apart from its technological advancements, VIVI also addresses the prevailing issue of excessive hardware requirements in 3D software. By concentrating solely on Cel Shading rendering, VIVI is capable of operating on laptops or even tablets, thereby reducing both entry and production costs.