During his travels in space, Seina Yamanda has seen some strange sights and visited many odd worlds. Seina quickly learned that everything was possible in the vast universe. For example, Seina and his three wives spent a vacation on a planet where all the women were 200 feet tall! They had went to Gigantica--the Planet of Giant Women--to chase down a criminal that was wanted by the Galaxy Police. The criminal led them on a merry chase through the Great Palace of Gigantica, but the criminal was caught in the end. That was years ago now...when Seina was 16 years old. In fact, Seina was married one year to his four beautiful wives then.
Now, Seina is 18 and still on "decoy" duty for the Galaxy Police. Seina, Amane, Kiriko, and Ryoko was famous for catching some of the most wanted pirates in space. The Kamidake II looked as new as ever. There were rumors floating around in the Galaxy Police that they were working on the Kamidake III, but Seina said that he was happy with the Kamidake II. Besides, he didn't want to upset Fuku, the 'computer' for the ship he commanded. Fuku was an invention of the great genius Professor Washu, who was on Earth. Fuku had a chance to meet her big sister and her mama when Seina had visited his parents one time.
And now, the crew of the Kamidake II was in the mood for a long vacation. The vacation would begin on Seina's 18th birthday, and go on for two weeks. And the girls knew where to go on thier vacation; Gigantica!


Gigantica is a planet about the same size as Earth. However, all the women on Gigantica are 200 feet tall or taller! The men on Gigantica were normal sized (averaging 6'0" in height). Gigantica was discovered over 300 years ago...and before that, Gigantica was a legend known throughout the galaxy. It was a hot tourist spot (mostly by males) and boasted to have more hot springs then the planet Tenrei!*
Things have changed since Seina and his wives were there last. The current queen of Gigantica, Queen Amanda VI, had made a law. This law was the reason that Amane, Kiriko and Ryoko wanted to go back to Gigantica. The law said that any off-world female visiting Gigantica gets turn into a giantess as well. Of course, Seina doesn't know a thing about this law, since the girls had "forgotten" to tell Seina about it.