An Angels Demon

We all know that Angel never had a friend before, but what if she did? What if before that friend disappeared he made a promise to do what ever it takes to return just to see her? Over the years she lost faith that he ever would come back but never gave up on him. Just as she's about to give up all hope, she over hears Yuri about some new guy appearing with blond hair and whisker marks. This is where our story begins.