the legend of zero-half angel and half demon god

His real name was Ryan Hansen but to the world he was known as zero, the only S rank assassin of the world. To protect the only light of his life he sacrificed himself. At the face of death his only wish,"If there is another life after death, please give me a loving mother like her" He was reborn. He was also given a mother. But who knew fate was so cruel. He was separated from his mother on the very first night of his rebirth. He was sent to a place of no return. Follow Zero as how he became a interworld mercenary hopping through different worlds to return home and afterwards becoming god. But returning home was just a beginning........ "Can anyone tell me how i became a prince of a whole empire after returning home? I thought our family was poor" He thought "can anyone tell me how can i have a fiancee? I don't remember being engaged" Mother,"son, you have suffered enough.I have prepared a small villa for you" pointing the large palace,"this is small?" Dad,"son, you have suffered enough. Here's the key of treasury." "......" elder brother and sister,"Ray you have...huh, little brother where have you gone?" * The above image is not mine. Credit to the artist *