As Hongjun, It Makes Sense for Me to Lead the Ancients to Cultivate Immortality, Right?

In the future, extraterrestrial demons invade the earth. Although the spiritual energy is revived, humans are still unable to stop the offensive. The only way is to change the past and speed up the recovery of spiritual energy. As a result, Li Hongjun, a young man favored by heaven, became possessed by the system and began to lead the ancients step by step towards spiritual recovery through secret realms. It's just that these rebellious emperors don't seem to be so cooperative. "The divine right of kings? Okay, then kneel down and I will give you the crown." "Theocracy hinders social development? If I were an ordinary person, then I would agree with you, but I'm sorry, but I am a god, so I will blow your head off." As the incarnation of the way of heaven, Li Hongjun unknowingly became the divine power that opposed the monarchy, and began the path of cultivating immortality by falling in love and killing each other with the emperors. (I will definitely not lick the emperor. Most of the emperors' positions are opposed to the protagonist. The main focus is on the recovery of spiritual energy. It is not a rigorous historical text.)