Shion from the beginning was a lonely boy. He was born on Tes, and he lost his parents in the war that was on his planet. Trying to protect himself he killed the soldiers that tried to shot him. He is a Sarches. He had a very difficult childhood. The war signed him deeply and we can see that in his adulthood too. He is strange and don't like nobody. As kid he touched that happiness that is called family, but lost it quite soon. Lazlo and Kyaa where his family for 78 days (I'm not shore if they were 78). From the beginning the other children looked at him differently and he didn't like it but he continued living on. Than one day come Gyokuran and he pretended to be his friend, but Shion hated him and couldn't see him, while he kept coming back every time, finally he found a way to make him hate him: Kokos and lately Mokuren. He was also send to the Moon Base only because he was an orphan and was grown up thanks to the state, (Such bastards!!!) and the most charming thing of that trip on the Moon was that Gyokuran was in the team too. (Poor Shion what he did in his previous live was very bad ^^) But he accepted… and met the most charming female creature in whole universe: Mokuren. And so begin the adventures of Shion Zatesu bad as always. In the moment they arrived on the Moon he had to made work the computers which were in horrible state. And when Mokuren sang he had to redo everything… it's known that plants destroys machines from inside. But there was something with that woman that he couldn't deny, so he treated her bad, not because of hate, but because he didn't know how, and because he tough for all the time that she was in love with Gyokuran (NOT TURE!!!!) and the only way for have her was rape her (it wasn't a rape…it's only that he didn't have to mention Gyokuran in that moment…it was a really stupid move…don't you think?) But at the end he win her not only the body but the heart too. And we begin from the beginning again… again he though that Mokuren was with him because of pithy and that she doesn't love him (HOW WRONG!!!). He sow her die in his arms (it makes me cry that scene) asking him to live and not to suicide, and he kept his promise…and continue keeping it in his own madness, till he finally died and reborn like a normal child with a family. At the and of everything his soul goes with Mokuren's in atmosphere (One of the most touching moments of Psme)