Marcellus

Marcellus, along with Lazarus, Karen, and Merlin, were successful in slaying Alice XV (Fifteenth), the previous Monster Lord, but realized her intentions for coexistence too late. Just as he and his companions were proceeding to spread her wishes, Alice XVI (Sixteenth) came along and attacked the group out of blind rage upon noticing her dead mother, killing Karen and Merlin. Having killed Karen, a woman whom Marcellus and Lazarus both loved, they founded Ilias Kreuz out of vengeance.

Sometime after that, he met Lucifina and the two fell deeply in love and he was brought out of his despair. They both had a child, Luka and eventually, Marcellus grew to no longer hate monsters and began assisting them, leading them to Enrika, a safe haven for them.

However, Lazarus eventually learned that Marcellus had helped monsters and felt that he had betrayed both the ideals of the group and insulted the memories of Karen and Merlin. Marcellus replies that Karen and Merlin would never have wanted revenge. Lazarus then vented his frustration with an easily dodgeable attack only to realize to his shock and horror that the Monster Lord's attack left Marcellus blind in his left eye; he had been unable to see the attack coming, and shortly dies afterward. With his best friend dead at his own hands Lazarus spread the rumor that monsters killed him so that a further wedge would be driven between humans and monsters, but not before giving him a proper burial at Gold Port.