The UNSC Second Fleet, led by Fleet Admiral Nanamia Shinano, received urgent directives from FLEETCOM to head back to the Sol system for the defense of Earth. However, during their slip space jump toward Earth, a malfunction in their Shaw-Fujikawa Translight Engine thrusts them into an entirely new Sol System.

A Muv-Luv fic, taking place after the event of The Day. COSEAN, a regional political alliance formed by the majority of Southeast Asian nations in 1993, resented being forcefully integrated under the UN command, a tension that ultimately led to its eventual breakup following its establishment. Now, in the aftermath of Operation Babylon, COSEAN and its member states find themselves transported to an alien world-foreign, yet strangely familiar.