Reincarnated as an Archangel

Once upon a time, there was a realm called Sovngard consisting of 7 heavens, it was the realm of Celestials.
Celestials were beings of light and the lesser ones were named Angels. Among angels were those who had a Crown of light and were named Archangels, the greatest of Two-winged Celestials.
One day, a young man died on Earth and a long time passed... Until he awakened as an Archangel within the fountain of light; Thrust into a seemingly everlasting Cosmic war for power spanning across countless worlds...
He was entrusted with the duty to conquer worlds and vanquish demons but he was not an angel to blindly obey, he was human at heart!
Thus he began walking his own path in the cosmic war, hoping to free himself from the shackles of Celestials to live freely ever after. What will happen as he walks this path?