Ji Changsheng had not forgotten the initial purpose of entering the "Map of Mountains and Rivers."
Heavenly King Yuan Shi wanted him to fulfill the tall tales he'd boasted, to change the outcome of the Three Sects and overthrow Ancestral God Hongjun.
As for uncovering the schemes of Primordial Monarch Doumu... it might be hard for Doumu to believe, but honestly, Ji Changsheng had just stumbled upon it incidentally.
Gathering firewood by the path, he had accidentally foiled the grand plans of Primordial Monarch Doumu that were many years in the making.
This was not his original intention, nor was it his aim...
Doumu, I can't be blamed for this.
Ji Changsheng quickly put Primordial Monarch Doumu out of his mind.
Offending Tongtian, Doumu's death count +1.
Offending Yuan Shi, Doumu's death count +2.
Offending Empress Nuwa, Doumu's death count +3.
A dead person does not merit Ji Changsheng's continued concern.
For the Three Purities, the real big boss was still Ancestral God.