Daitetsu Kunikida

Daitetsu or Mr. Kunikida is the Chief Director of the TAC. When Kaede and Momiji were born Mr. Kunikida raised Kaede like his own daughter but he exploited her ability to track down and kill the Aragami. However when Kaede sacrificed herself he felt heartbroken. With Momiji in the TAC Mr. Kunikida decides not to exploit her abilities like he did with Kaede and instead treated her like a normal girl. Source: Wikipedia