Seraph of the End: Guren Ichinose: Catastrophe at Sixteen (manga) 4By: Yo Asami, Takaya Kagami Series: Seraph of the End: Guren Ichinose: Catastrophe at Sixteen (manga) Would you doom your love to death to rescue your family? Desperate to save his retainers and friends, Guren makes the ultimate sacrifice and gives up his humanity to accept the demon in his cursed gear, thereby transforming himself into a demon as well. His newfound demonic powers help him protect the people important to him, but the victory is short