Asche and his mate Chiali stumbled upon Naenie when Chiali was already quite far in her pregnancy. In hope of safety for their pups, or perhaps desperation, they asked to join Naenie's pack. The leading sister didn't have any complaints, as her pack needed more members to sustain itself. It only took a few days for Asche's mate to give birth, and he didn't need to be told twice to start hunting to provide whatever he could for his new family.
Asche has a very one track mind. He won't care about things that don't benefit him or those he cares about in some way. Not the greatest team player, but he will try if he needs to. For what it's worth, he's very protective of his family, and would do anything to ensure their safety and comfort.