First introduced in the hugely popular Oceania Part One collection, Sekai has since become a steady favorite. Sekai, believed to be derived from the word ‘seigaiha’ (meaning ‘wave’, source: Immortal Geisha) is often also interpreted as ‘dragon scales’ or ‘WiFi signals’. It was first seen on the border of the Okinami and Kasumi patterns. A variation on this pattern is SekaiLove.