Kagero explains that he was able to remain in his physical prime through the use of cryogenic capsules and that 2,000 years ago he came to know Yuito's ancestor, Yakumo Sumeragi. Before he can elaborate, the OSF storms the Ark and the platoons are forced to make their way through a cavern to escape from Hieno Mountain. According to Kagero, Yakumo Sumeragi was the leader of the efforts to recolonize the Earth, which eventually culminated in the foundation of New Himuka...