The law or April 6th, 1830 couraguard

Konoe Ayatsuki Mercury (コノエ＝アヤツキ＝マーキュリー Konoe Ayatsuki Mākyurī), more commonly known as Nine (ナイン Nain) She is a playable character in BlazBlue: Centralfiction known as Nine the Phantom (ナイン＝ザ＝ファントム Nain za Fantomu)

Explanation:

the answer to fill in the blank in this question would be the word resource, it is defined as the money, material or people (since human resource is a very valuable good) that a company or a person has at disposition (meaning they can use the resource as they see fit), to be able to complete a task or achieve a goal.