'It's hard to explain' signified that there was going to be a long story inbound.
Song Shuhang immediately made a listening gesture to show that he was getting ready for the Great Northern Emperor to tell the story from the ancient era.
In fact, Song Shuhang really loved listening to gossip about the ancient era.
The Great Northern Emperor said, "Well, I guess I can summarize it in two to three sentences."
Song Shuhang: "..." Senior Beifang, can't you follow the script?
The Great Northern Emperor explained, "To sum it all up, there was a problem with the path of the ancient Heavenly City's 'Heavenly Emperor', and so I had no choice but to take advantage of death to get out of that situation. After that, it was only when little friend Song Shuhang activated the resurrection formation that I had prepared that I was finally able to return to life, but even after getting resurrected, I kept on getting the feeling that there was still something that I had left in the Heavenly City."
