Ryoko finds a mysterious egg that leads to more space hijinks! Meanwhile, Tenchi and his grandfather work together to hone their sword fighting skills!

Tenchi Masaki is an ordinary guy who accidentally releases a demon trapped in a forbidden cave. This "demon" has been imprisoned for hundreds of years, and now she wants revenge! Looks like Tenchi's in trouble!

Zero fails in her mission to capture Washu and returns to Dr. Clay. Tenchi, Ryoko and Washu pursue her to locate and rescue the real Ryoko. When Washu confronts Dr. Clay, she reveals that she and Clay were once contenders for the director's chair at the Science Academy, but Clay was cast out for misusing his scientific talents. He tries to destroy Tenchi as a means of manipulating Washu, but Zero betrays him and he is forced to destroy his ship to make an escape.

Things get even crazier for Tenchi when a space princess take him and Ryoko captive! Looks like the poor guy will need a little help if he wants to return to Earth!

The dastardly Dr. Clay, acting on the orders of the mysterious Lady Tokimi, sends his robotic slave Zero down to earth to capture Washu.

Mihoshi's brother Misao develops the notion that his beloved sister is part of a harem run by Tenchi and swears to kill him. However, his adjutant, Mashisu, has other plans for the mission. Meanwhile, the princesses' grandmother, Lady Seto, arrives for a visit, and the family prepare a special meal to welcome her.

Tenchi and family return to the local hot springs resort in need of a holiday, but end up having to repair the place first, since they destroyed it in episode 4. While working at the inn, the others see a ghostly figure in white. Meanwhile, Sasami is acting oddly, and she has a secret about her past to reveal.

A combination of stress and exhaustion leaves Tenchi bedridden, and Tenchi's fiancée Noike nurses him back to health. Once he recovers, Noike shows Tenchi a new experimental Juraian ship designed to be more effective against any attacking foe. Meanwhile, the Kuramitsu family have received word that Mihoshi is unhappy on Earth, and send their state-of-the-art battleship out to collect her.

Kiriko discusses making Earth a permanent home for Seina and his family with her group. Meanwhile, Lady Seto dispatches Kuis to charge Seina with overseeing a proxy war on tabletop island. Tenchi and the group arrive on the island and are greeted by Seina.

While Tenchi and Seina thwart another attack on the island, Kenshi continues his training.

Sparks erupt, multiple balls of fire illuminate the emptiness of space, and amidst all that, there is "Tabletop Island". Due to the plan Kuisu devised, Tenchi and Shou end up having to deal with the pirates. Even though he was still not used to being in space, Tenchi works with Shou and the others to contain and ship off the pirates, despite having his doubts. One day, "Miron Pham" and "Fuku" visit the Masaki family. Miron explains that the plan is to anchor Tabletop Island on earth. She further explains that with the "Paradise War" being concluded and the island having become a floating paradise, the conditions are finally met to invite the Masaki Family there. This would be an ideal place to train Kenshi. Both Tenchi and Washu are taken aback by Miron's casual words. With all sorts of thoughts on his mind, Tenchi accompanies Kenshi, Ryouko, Ayeka, and the others to Tabletop Island. There, Tenchi will be doing some soul searching...

A few years after the previous episode, Kenshi continues his training against Minaho, Funaho, Misaki and Seto among them. That evening, a large gathering from the Juraian royal family, other royals, the Kuramitsu family and Seina's family meet with Tenchi and the girls to hear Tenchi's decision.

Kenshi’s training continues. He’s now able to defeat the girls on Banjo Island, but still cannot do it quick enough. He’s still no where near good enough to hold his own on Geminar. As such, Seina’s harem takes over the training to get Kenshi to the next level. Further, Tenchi’s harem also joins in the training, including a pregnant Ryoko.

Even with Nobuyuki and Rea's wedding coming up in a few days, the Masaki household, though busy with preparations for the wedding, their everyday situation is still par for the course for the Masaki house. In space too, people connected to the Masaki house are making preparations in order to attend the wedding. Airi is battling mountains of paperwork, and Funaho, who can't attend the wedding because the survival of Yosho hasn't been made public, gives her wedding gift to Minaho. A few days before the wedding, people connected to the Masaki house gather on earth and Tenchi meets his aunt Minaho. "...she reminds me of mom..." that's Tenchi's first impression, quite natural as she's also Airi's daughter. The scent of trouble is in the air...

On a particular day full of tension at the Masaki house, everybody is waiting for that moment. They are waiting for their new family member who will be Nobuyuki and Rea's first child and Tenchi's brother. With the entire Masaki family standing by, Tenchi's brother "Masaki Kenshi" lets out his first cry. But for Kenshi, this already marked the beginning of a heavy fate awaiting him. A few years later -- The women lead by Seto and Washu, and the men aiming to stop the women, lead by Juraian emperor Azusa and including the "Seto inhibitor" Seina, gather to discuss Kenshi's development. While the disquieting discussions continue, Kenshi's mother Rea makes a decision.

Though the destiny-laden life brings a lot of joy to Kenshi's mother, Rea, and Tenchi, the days are also tinged with worries. Next to the soundly sleeping Kenshi, Tennyo and Rea discuss Kiyone and other family matters until the day breaks. Then it's back to the usual "day in the Masaki family" again. Young Kenshi is not weighed down by any of the gloomy worries the adults have and grows stronger every day. Meanwhile, the adults on the side of the Yamada family are also starting to begin talking about the things to come...