LINE emerged from the 2011 Tōhoku earthquake as a network-agnostic messenger, then became a cultural phenomenon through its character-driven sticker economy. Brown the bear, Cony the rabbit, and Sally the chick — designed by Kang Byung Mok — turned a chat app into a beloved IP empire spanning retail stores, cafes, and manga platforms across East and Southeast Asia.

The visual system is defined by LINE green (#06C755), universally rounded surfaces, and a warmth that feels like opening a sticker from a friend. Every element — from pill-shaped buttons to soft-shadow cards — inherits the approachable, character-first personality that made LINE more than a messenger.