The Exophonia transforms the ICNALE* corpus, thousands of L2 English essays written by students across 19 Asian regions, all arguing the same prompt, into a living understory of exophony, the act of speaking and writing in a non-native tongue. The 71-minute text-root animation draws on a merged essay aggregated from all 19 regions. From a single shared seed word, the first essay of each region unspools together, interleaved word by word. Only the marked words appear: those that depart from the native norm through rarity or grammatical deviation. Non-native collocations grow, germinating, forking, and twisting in real time as a floating rhizome, slowly expanding in the void, attaching to no soil, receding from the viewer into the vanishing point that never resolves. Each of the 19 prints is generated from the full body of essays from a single region. Each region's writing becomes its own root system, with a single origin and a hierarchical branching structure. Dependency parses and error analysis drive that branching. Collaged together, the 19 prints form a single larger map. Where each region's root system is arborescent, the collage is a rhizome, with no center and no beginning. The Exophonia reclaims the otherness of the non-native voice, turning it into a cross-cultural ecology at once rooted and restless, argument and song.