Episode 6

"SECRET" is the sixth episode of the Astra Lost in Space anime.

Summary
As Ulgar holds Luca at gunpoint, he states that he is not the traitor and explains to everybody that he believes his older brother was murdered by the politician Marco Esposito for investigating his corruption. He seeks to kill Luca for revenge, as he is Marco's eldest son and apparent heir. Luca then reveals that he is not Marco's heir due to being intersex, having been born with both male and female biology. In addition, he had been secretly adopted into the Esposito family before his condition was discovered, and was all but disowned when his younger brother was born. Ulgar realizes Luca is an outcast from his family just like him and lowers the gun. Suddenly, the island is hit by a tsunami. Most of the group manages to make it on to the Astra safely, but Ulgar and Luca are washed away. Ulgar attempts to sacrifice himself to ensure Luca's safety, but they both end up being rescued by Kanata. After they leave Arispade, Ulgar apologizes to Luca and vows to return home alive to investigate his brother's death. Zack then brings up the possibility that Ulgar's brother may have uncovered a much deeper conspiracy than government corruption, which may be related to why they've all been targeted. Ulgar decides he will become a journalist like his brother and Kanata allows Ulgar to maintain possession of the gun since he is the only person who knows how to use it. Later on, Aries gets into a conversation with Charce, and she notices an inconsistency in his story because she doesn't remember seeing him in the biology class he claimed to attend. The group confronts Charce, suspecting he is hiding something from them.

Characters
In order of appearance:
 * Kanata Hoshijima
 * Aries Spring
 * Zack Walker
 * Quitterie Raffaeli
 * Funicia Raffaeli
 * Luca Esposito
 * Ulgar Zweig
 * Yun-Hua Lu
 * Charce Lacroix
 * Finn Zweig