The Adventure Begins with Turning Back

I was dumped by the goddess sister in my heart! Li Yuntian: It doesn't matter! The goddess sister is going to die in order to save the mainland! Li Yuntian: That won't work! In order to retrieve the goddess sister who went deep into a dangerous place, Li Yuntian, a loser, had no choice but to embark on an adventure on the edge of death. Good-for-nothing? It doesn't matter Half-assed? It doesn't matter As long as Li Yuntian can turn back, he will get his goddess sister back safely even if he tosses and turns to death all the way.