Hayato is a contact dog.
Ginga Densetsu Weed: Orion
However, a conflict arose between them, during which Kakeru declared that the only heir to the Kurohabaka clan was Yamabiko.
Enraged at such words, Matheus ordered his subordinates to kill him and Kakeru.
He and Kakeru fled in different directions, but Kakeru managed to grab it anyway. He ordered him to run further, but he was almost caught up in the forest.