Long ago there were stories told of a malicious trickster known as Tsi-s-du, who was an ancient Cherokee rabbit spirit. He often attempted to victimise others for his own entertainment, even though his schemes usually came to nought. Millenia later, the spirit of Tsi-s-du was reborn, made to wear the mask of a human as punishment for his past actions. Roaming the galaxy, he eventually travelled through the EVE wormhole. Over time Tsi-s-du became bored with endless pranks and set off for new pastures. It was during this trek that he happened upon the laboratory of Lepus Aurorae, who was conducting experiments into leporid zoanthropy. Filled with rage, he attempted to sabotage the entire starbase. History inevitably repeated itself and his plan failed, and he found himself face to face with the three beings in all the galaxy who could understand him more than any other. Thus was Tsi-s-du tamed and incorperated into the family Ludorum and given the name Xestyr, which means Immortal One.