0: The Monster of Goryeo

It has been nine centuries since she slept inside her coffin, Taeyeon woke up in a new and civilized world of South Korea. Yet, someone caused her eternal slumber to diminish, it was Tiffany-- who have been in a hiking adventure when the rain falls down from the sky and got lost.

Little did she know that the one who awakened is the one who is the most dangerous creature on Earth...