Coyote Starrk is the Primera Espada, signified by the “1” tattooed on the back of his left hand. Starrk and Lilynette came into being as the result of a Hollow splitting its soul in two out of loneliness. This was brought on by the fact that its vast spiritual pressure was too deadly for those who got too close, even towards other Hollows it tried to befriend. Starrk apparently does not remember which of them resembled the original Hollow.
It’s pretty awesome to see the two of them together. I liked Starrk’s laidback attitude in the beginning of the anime. Thanks to Mae for sending this in!