Neirrei

Parilyne's childhood friend from a rich family that expected too much from him. While he was with Parilyne, he could relax and embrace his true airheaded and easygoing personality. Using his innate Life Transfer ability, he saved Parilyne's left eye, swapping the damage to his own body. When Parilyne mysteriously went missing, Neirrei was convinced that his family had erased her, something that they have a history of doing to others. Already frustrated from years of living under his family's thumb, this triggered Neirrei into slaughtering his entire family. However, he never received a confession about Parilyne's whereabouts. Having nothing tying him down anymore, he was about to take his own life until the Magician Genovieve recruited him as a Godfather-class Peacemaker. He continues to live while helping others, thinking he'll never see Parilyne again until... [From official bio]