Bio + Harem

Izuku Yahi led a horrible life being neglected by his parents and being abused by his friends and sister. one day after particular severe beating by his sister and her friends, Izuku who was on the brink of death, close his eyes for the last time thinking that he was about to die but when he opened his eyes again he was in the field filled with flowers and in the middle of that field was one person with long green hair and green eyes. Who was this man?