INAX Biyusai is a Japanese porcelain tile collection composed of multiple complementary shapes designed to be mixed and layered together. Each format features subtle surface variation and refined texture, allowing for dimensional, architectural compositions. The interplay between the different shapes creates movement and depth across the installation, offering a contemporary yet handcrafted aesthetic. Designed to work as a unified system, Biyusai allows for creative layouts while maintaining a cohesive, balanced look.