Transmigration

Having lived his life protecting others, completing his dreams, it all ended when the invasion came. He died, destroying their leader with his brother in blood, but at what cost? Not being able to see his family again? His loved ones? Now, I'm in a world with Devils? Gods? Angels? What is going on? Wait, was it all a dream? Or was it my past life? Harem(ofc) *Totally Cliche