Sign of "10.5km" 틀:Arcaea/Groove Coaster GROOVE COASTER/음반 GROOVE COASTER AC/수록곡 GROOVE COASTER ZERO/수록곡 GROOVE COASTER for STEAM/수록곡 Arcaea/Base Potential Arcaea/차트 디자이너 ZUNTATA GROOVE COASTER/수록곡 Arcaea/수록곡