"When Shiyi left the Sea of Nothingness back then, he took the Blue Demon clan and migrated to the 'Northern Underworld Snowfields'. However, that is a place my Spirit-Tending clan only knows of by name; our ancestors never actually went there!"
"Before launching the extermination war against the human race, Shiyi once sent people to the Sea of Nothingness to invite the Spirit-Tending clan and the Qianhu clan to lend him a hand. We learned of the Northern Underworld Snowfields from the mouth of that Blue Demon messenger, but the messenger never explicitly stated where the place actually was!"
"Back then, your father came to the Sea of Nothingness to investigate the Blue Demon clan and Shiyi, and he left as soon as he learned that the Blue Demon clan had already migrated to the Northern Underworld Snowfields!"
Chapter 619