No I didn't. Do I need to go back and finish that first?
I can't remember ... I will check and get back with ya
I just remember that this felt like a continuation of Harby ... and it kinda is, without being ... if ya get me. The story of Harada continues here anyway.
(But you should try Unity. The first arc finds Harada, Livewire, Ninjak and Eternal Warrior going up against X-O. Was really fun)
EDIT - No, I don't think you need to go back and finish Harbinger. Just know that this book is after the Harbinger foundation ... well ... just think of this as part two of Harada's story. Time to tell the bad guys tale and follow him for awhile. Harada is Dr. Doom, Magneto and Lex Luther all in one !!!
(but yeah, you should read the first trade of Unity !!)