About me: At some point before becoming Arrancars, their original Hollow tried to live with its kind, only for them to lose their souls and die from simply being near its presence. Because of this, it became jealous of how the weak are allowed to come together, and so wanted to become weak. In an attempt to escape its loneliness, the original Hollow split its soul into two Arrancar, which became Coyote Starrk and Lilynette Gingerbuck respectively. Not remembering which of them were originally before they split, Starrk speculated their original appearance corresponded to neither of them. Even so, Starrk remarked that they wanted to become weak so they could be together with a group, and if this were not possible, they wanted to find someone as strong as them.
When they split their soul, Starrk asked his newly formed counterpart if she had a name. Telling him her name was Lilynette, she asked if he had a name, despite them being the same person. Telling her his, he threw her a cloth to wrap herself up in. As she asked him what would they do now, he stated they could do anything. When she asked where would they go, he, stating they could go anywhere, assured Lilynette no matter what, they would stick together forever.
Starrk and Lilynette were alone when they were first found by Sōsuke Aizen. The two were sitting in front of mountains of dead Hollows, which impressed Aizen. When asked if they had killed all the Hollows in the area, Starrk told him no, for they had just died. This further impressed Aizen, who told Starrk he seemed strong. Pondering something, Aizen told the Arrancar he was searching for allies. Commenting on what a coincidence it was, for they too were looking for allies, Starrk asked Aizen if his allies were strong. When Aizen told him to come along and find out for himself, Starrk, agreeing to join him, noted Aizen looked like he could stay with them without dying.