CoralArc utilizes algorithms to simulate the rules of pushing, replicating, growing and expanding among coral tiny cells. After dynamic stacking along the time axis, it gradually forms a beautiful form of complex organic curved surfaces. ROLA is committed to computing design, robotic 3D printing technology and new materials research. The work utilizes transparent materials to express the beautiful changing form and pure luster of undersea corals, while its colors are the coexistences of the people interacting with the lights, as well as the scenery on the beautiful bay. Through the properties of material and the curves of form, it echoes the endless coastline and sky when the viewer looks out at the sea, and shows different appearances in different periods.