Despite being ordered to investigate a giant chulip on a tropical island, the crew decide to first enjoy some swimsuit time at the beach. Meanwhile, having slipped away from the attentions of his admirers and their nightmarish attempts at cooking, Akito runs into a girl who seems to embody his idea of the perfect woman. Can reality ever match up to fantasy, or is Akito in for a big disappointment?

When the Nadesico's computer system malfunctions and starts attacking United Earth forces vessels, Admiral Munetake decides that the ship's memory banks should be wiped and reinstalled. Unwilling to see Omoikane (the ship's AI) and all its valuable data erased, Ruri enlists Akito's aid on a virtual reality mission to save Omoikane and restore its sanity.

It's revelation time for Ruri when she discovers that she is the biological daughter of the King and Queen of the neutral country Peaceland, who was lost after an in vitro fertilisation. With Akito as her knight, Princess Ruri heads off on a journey to fill in the missing details of her past.

The Jovians have sent a peace emissary over to the Nadesico- Yukina Shiratori, younger sister of Tsukumo. However, peace is the last thing on Yukina's mind- she plans to assassinate Minato, the 'savage Earth woman' who 'corrupted' her brother! And with the Nadesico about to arrive back on Earth, how will Nergal and the UEAF react to there being a Jovian aboard the ship?

Truth, peace, and justice- these are the ideals that the Nadesico wants both warring sides to appreciate, and what could embody them better than the century-old Gekigangar anime? Whilst Tsukumo Shiratori arrives on board ot act as an ambassador, Yurika organises a shipwide ""Geki-Fest"", hoping that the themes of the show will help both Earthlings and Jovians understand how to achieve peace.