As a tiny pup, Grimes and his mum, Juniper, were found trespassing in the Axials territory and brought to the Second Leader Aros. Aros decided to take both into the pack, partly out of pity but primarily to further his base of support in the pack after he narrowly took the lead role.
Grimes grew up idolising the young leader and often approached the wolf to ask for advice. As an adult, Grimes would accompany Aros on his surveys of the territory and would provide his strength willingly. Although initially reluctant, Aros accepted the younger's services, and the two became very close.
Although Grimes isn't very outgoing with most of the pack, his relations with Aros as well as his high ranking mother, Juniper, gives him a lot of status. His physical prowess makes him a force to be reckoned with, and the scars on his pelt speak of the many fights he has won.