The Second Wave has passed replacing our green universe with a red one. The threat of extinction has been narrowly averted. Consequently, a mysterious flying object has started to appear near the Ultima FoundationThe new DLS control systems are a bit difficult to master. Some students never do get the hang of it. However, Shima seems to have no trouble at all and scores the highest record. It's no wonder that Ayaka seems a bit irritated. An irritation that can bring about unthinkable actions Then it's off to Earth for Christmas vacation. Shima and Kouta visit their families for the first time since school started.