In Another World - A Most Improbable Caster

Desmond Blake had read about people reincarnating in other universes. So, meeting a ROB named TM11 and being reincarnated in the Nasuverse wasn't that surprising to him. What was surprising to him was being reincarnated into the Nasuverse as the Supreme King from Yugioh GX and the Caster of the Fourth Holy Grail War. He had never read about that one before.