Division Soko (Bleach Fanfiction Volume II)

An unknown enemy has infiltrated the Soul Society and within one night successfully took down all the Captain's of the Gotei-13. With the only person that can tell them who the enemy is gone, will Urahara and the only and newest member of the Gotei-13, Captain Jaegerjaquez - be able to figure it out. (And we all know that Mae will come back, I mean it's pretty obvious, but it does however end in a battle of who is the alpha in the end between her and the enemy.)