As fate would have it.

It's been about twelve years since Hiyori last saw Yato. Twelve years since he cut ties with her. With tears in his eyes he explained that it was all for her sake so she could finally start to live a normal life. 
What he didn't know back then was that their ties could never be cut.
Hiyori remembered everything about him, Yukine and the far shore. 
At the time Yato and she parted ways Hiyori was already pregnant with a baby girl that grew up knowing nothing about her father.

(A multi chapter noragami fanfiction!)