Now, we will have to put some stuff in it to make it work :P
First, for the process name, put BlackShot.exe.
Then, click on add dll, find the file called Akame ga Kill - Anonymous.dll which was the file you downloaded. After that go to settings.
Edit the settings till they look like this: http://imgur.com/sMYX0zE,GX3W7QQ,QSKFZpB#1
After that launch blackshot and remember the hot keys You're good to go!