The Encounter of Nambu Moroyuki and Kitabatake Akiie

Kitabatake Akiie was appointed to be a chief of the Mutsu state on August the 5th in the third year of Genko (in 1333) at the age of 16, and moved there with his expeditionary force on October the 10th in the same year. He managed to bring the region under his control by the end of the next year.
Where did Nambu Moroyuki meet Kitabatake Akiie? If the former had lived at the Hakii county in the Kai state, they should have met at the estuary of Fuji-mi River on the latter's way to Mutsu. For form's sake, the former should have visited the latter. How was Moroyuki attracted by Akiie?