Ep. 1: The crew returns to Earth where Akari faces heated battles in Japan against the Terra Formars.

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The crew has returned to Earth, but the Terra Formars have arrived there as well. Akari undertakes a mission in Japan, leading to intense confrontations. Meanwhile, Earth forces are struggling to determine how to stop the Cockroaches. The situation escalates as the enemy presence becomes a direct threat, forcing both Akari and the broader military command to react to the sudden and dangerous invasion. The narrative focuses on the immediate conflict arising from this dual return, highlighting the urgency of the defense efforts against the invading species.