After Gremor's girlfriend's tragic death, Gremor, the son of the king dragon, agreed to the witch's condition of giving the woman he loved a second chance to live again. But that's not as easy as he thinks because the witch will take his immortality right after his girlfriend's Conan is reincarnated.
Five hundred years have passed, and he has yet to see the indication of Conan's reincarnation. He loses hope and ends up appealing with Himato, the father of dragon magic, to prolong his life.
Himato found out that Gremor has been cursed and to stop this, he needs to delete his memory. He sealed Gremor into a divine mirror so his life wouldn't be wasted for a year. Himato himself waited more years just to wait for the woman's reincarnation.
A high school student who loves to read books about dragons is born in the modern world. Himato summoned the woman with a hand sign and put her 500 years backwards.
What can Gremor do if the instant he remembers everything, it's the end of his time? Will he be able to be with Conan again and continue their love as they had promised?