Ancient Tomb of the Gods and Demons.
In front of that vast sea of flames.
After extracting Liang Zuoyi's Lifebound Blood Essence, Ye Chenfeng took Liang Zuoyi and Su Bingshuan back to that sea of flames.
Ye Chenfeng did not extract Su Bingshuan's Lifebound Blood Essence because, through previous interactions, Ye Chenfeng had gained a general understanding of Su Bingshuan as a woman. He preferred to be friends with Su Bingshuan rather than hold her life in his hands, especially since Su Bingshuan had never shown any malice towards Ye Chenfeng.
In the distant sky, that enormous black fissure was still gathering energy. The blackness within the fissure grew increasingly dense, and its size kept expanding as if something wanted to break free from it.