A gate explosion was supposed to be the end of an ordinary convenience store worker's life.

Instead, he wakes up as a legendary Ancient Dragon—a walking disaster powerful enough to erase cities. The only problem is that everyone keeps misunderstanding who, or what, he really is.

After being mistaken for a mutated survivor and escorted back to Earth by Korea's strongest hunters, he finds himself living among humans while desperately hiding the fact that the country's newest VIP guest is actually the world's greatest calamity. Between awkward misunderstandings, a chatty spirit companion, and hunters who think he's surprisingly harmless, returning to a normal life turns out to be far harder than becoming a dragon.