Betrayal Knows My Name Graphic Novel Volume 03 (Mature)

"Despite finally learning more about the 'Sunset of the Underworld' a thousand years past, Yuki finds his thoughts returning once more to his former friend and current enemy Kanata. But while Yuki may be new to picking sides in a centuries-old war, it is nothing new to the Zweilt. And Kuroto and Senshirou, the new Zweilt pair Yuki has only just encountered, harbor a profound hatred for Opasts, swearing revenge on one in particular. What happened four years ago to inspire such loathing?"