Duan Ling Tian did not forget the purpose he had left the Fire Worship Sect. He left to devour other people's Innate Spiritual Roots so he could improve his Innate Spiritual Root and become strong in a short time. He could only save Ke'er and their daughter from the Fire Worship Sect if he became stronger.
Today, except for Dongfang Zhu, the Second Young Master of Dongfang Clan, he did not devour the Innate Spiritual Roots of Qiu Gang Yi, the Second Master of Qiu Clan, and Clan Leader Dongfang Qian of Dongfang Clan. Naturally, there was a reason for that.