Noragami: Stray God Volume 4: 02/08/18
Noragami: Stray God Volume 4 by Adachitoka goes into the long history of Bishamon and Yato. Bishamon blames him for destroying her family, one she has built from all her shinki.
While Bishamon is fuming over the family she lost her current one is threatened from within. One of her beloved and trusted family members is secretly plotting against her, reintroducing the blight that eats away at her.
If having a large family of shinki is dangerous to the god, why does Bishamon risk it? That comes down to a difference of philosophy between Yato and her. The specifics are further explained in volume 5.
I read volume 4 after seeing the anime version of this plot. While in either form, I'm honestly not that interested in Bishamon's story, I do appreciated the more subtle nuances of the manga. I'll address that further in my review of volume 5.