Because of the so-called destiny, two immortals who could not be beaten with eight poles became the only competitors for the position of Emperor of Heaven. After going through all kinds of hardships, from mutual hatred at the beginning to cherishing each other in the end. The two understood each other, helped each other, and finally became the best version of themselves.
Purpose: Good friends are tolerant, trustful, supportive, supervising... Helping each other to become better selves.