One hundred years ago, Gwang-in became the obsession of the first emperor - a man who would stop at nothing to ensure that he got what he wanted. Death was his only escape, and he prayed that it would forever conceal from him the memory of that life. But one does not simply run from karma, and Gwang-in finds himself and the emperor have both been reborn into the same timeline - but only Gwang-in can remember their past.