high school dxd (i am a SAIYAN)

A boy Transmigrate into high school dxd. He is a saiyan,have immortality of ban(from seven deadly sins) see how he fares in the world where dragons exist. ... ... .. I will not follow anyone because everyone will follow me ... I will end the war and chaos in the world.. I will become the strongest of the world. Because.. .. .. I am a SAIYAN