The story begins with an underground expedition at a university. During an exploration, Ye Long and a group of students entered an abandoned basement on campus. The basement was filled with a mysterious, eerie atmosphere. As they explored, they stumbled upon a hidden ancient passageway. Following it deeper, they found an ancient coffin pulled by nine enormous dragons. The Nine-Dragon Coffin radiated an ancient, mysterious power. When Ye Long and his companions touched it, they set off on a fantastical journey across the sea of stars.
