Charce Lacroix

Charce Lacroix (シャルス・ラクロワ) is a member of Group B-5. He's the first mate aboard the Astra, thanks in part to his love for biology and extensive knowledge of it coming in handy during planetary exploration.

Appearance
Charce has pale skin with blonde wavy hair and blue eyes. His spacesuit is mostly white and indigo with yellow outlines on it.

Personality
Charce is generally a very friendly and charming person, though he sometimes says things that come across as odd or even creepy to the others. He loves aliens to an extreme degree and gets incredibly excited over them.

However, under that he feels as though he himself is worthless. In order to follow through with orders, he is willing to kill himself, although he has always had a longing to go outside of the cage of Vixia that he was raised in.

Plot
In 2163 A.D., Charce gathers at Mousanish Spaceport along with the other members of Group B-5 except for Aries Spring and Kanata Hoshijima, the former who joins them shortly afterwards and introduces herself. The teacher then introduces Quitterie Raffaelli and her younger sister Funicia Raffaelli who will be joining them as part of a unique task to take care of and teach a younger child. After Luca Esposito voices his objection to the task and Funicia takes out her puppet Beego and begins to badmouth him, Charce shows knowledge about the toy and its functions. When Kanata arrives and proclaims himself as the leader of the group, Charce is the first one to question his statement, having thought that it would be determined by a vote on the first night of their stay. The group then boards the spaceship to begin their four-hour journey to Planet McPa. Once they are able to move freely around on the cabin, Charce comments that he cannot relax until he's changed into his bathrobe. Upon landing, they exit the spaceship and walk around for a bit when Luca points out a strange globe that's been approaching them. They try to run away from it, but the strange globe is able to absorb and send them all into outer space.

They are able to find a nearby spaceship and upon collecting their luggage, they are able to board it safely. When they learn Aries is still out in space Kanata volunteers to go out and rescue her, Charce and the others watch over the cord tying him to the ship. After Kanata and Aries are safely back and they learn they're 5,012 light-years away from their original location, Charce tries to calm the others.

On Planet Galem, the group's final stop before home, the group learns that Charce was the one trying to kill them. He reveals that he's the clone of Noah Vix, the king of Vixia, who he had been raised to become a vessel for before being ordered to kill them all so no one would learn they were clones. He didn't go through with this because he realized Aries was the clone of Seira, the king's daughter, and he wanted to make sure she got home safe, but he still intended to kill the rest. Unable to do this, he tried to kill himself but stopped when Kanata lost an arm trying to stop him, showing he really had come to care for all of them. In the end, he returned to Astra with everyone and became the new king of Vixia.

Biology
Charce exhibits a major knowledge of bioscience and biological sciences (including ecology, biochemistry, genetics, zoology, and botany). He is well-versed in the science that studies life and living organisms, their structure, growth, functioning, reproduction, origin, evolution, distribution, as well as their relationships with the environment and with each other. He uses his knowledge to cook for B-5.

Sophie Lacroix
Sophie is Charce's adopted mother. Not much is known about their relationship, but she seems to care about him.

Kanata Hoshijima
Earlier on, Kanata seems to find Charce annoying, though he also clearly thinks highly of him as he thought at one point that Charce would be a better leader than him, only for Charce to offer to be his second-in-command instead. They grow closer throughout the show, and when Charce tried to kill himself, Kanata risked his life and lost his arm in order to stop him. Charce then promises once again to be Kanata's right hand when he goes to space again.

Aries Spring
After meeting Aries, Charce quickly realized the similarities she had to Seira, and realizing she was her clone, he became protective of her, trying to ensure she made it home safe and showing great concern when she so much as cut her finger. In the end, though, he recognizes that she isn't Seira, and sees her as a friend in her own right.

Quitterie Raffaeli
Quitterie often seemed bothered by his fascination with the animals they encountered, and for his part, Charce did seem to possibly think she was a bit dramatic at times, even if he didn't voice it. In the end though, they became friends, and Quitterie tried to help convince him that if she and Yun-Hua could change, he could too, though she was angry about what happened to Kanata afterwards.

Zack Walker
They both expressed an interest in accompanying Kanata to space some day, and eventually did so.

Yun-Hua Lu
Yun-Hua and Charce seem to get along well. Charce has always been kind to her, telling her not to apologize after she introduced herself and said she didn't have any talents. He also helped her out when she couldn't get her thrusters to work right. Later, Yun-Hua tried to help convince him he could change, using her own experiences as an example.

Ulgar Zweig
Ulgar doesn't seem very fond of Charce at times, much to Charce's dismay. After learning the truth about Charce, Ulgar seemed to accept it more easily than most of the others and reacted more with anger, even seeming to want to actually shoot Charce a time or two. After that though, Ulgar forgave him, trusting Kanata's decision, and the two decided to look into Seira's assassination once they got back.

Seira
Charce was Seira's personal aide, though she saw him as a little brother. Charce made it his personal secret mission to protect and entertain her, and was hit harder than anyone by her death.

Trivia

 * His surname Lacroix means "the cross".