Kal-El never made it to earth Braniac attempted to send him to the phantom zone but something went wrong instead of a portal to the phantom zone another portal opened to the Elemental Nations, Kal-El's infant form fell on top of the Kyuubi's head Minato sealed the Kyuubi's knowledge and power into Naruto, Naruto remembers everything about the Kyuubi attack Kryptonian/Naruto Harem