Minoru's father was a scientist for Suna. About 3 years after the 4th war a large and unusual winged beast was seen roosting out in the desert. It was the chimera made by Hiruko's followers during his attempt at completing the Chimera technique years prior. Everyone thought it was dead after it had gone against the Konoha 11 and the sand siblings, but it had survived the fight. After everyone had left the scene it flew away from the mountain and had wandered ever since. It was captured without the knowledge of the Kazekage and secretly snuck into Suna. There they carried out what were likely unethical experiments on it. It was quickly ascertained that the combination of creatures was imperfect and it might be possible to extract the three humanoid forms inside its body without killing them