Two important things in life. One incident to change everything and one chance to pay for all the mistakes.   "Chance" but Taengsic version with a twist too. 

  Lust for Vengeance   Since the beginning of the Goryeo dynasty in 918, the existence of creatures baring sharp canine-like fangs, eyes that turn crimson from the thirst for blood and pale complexion have instilled fear and horror to the people

"You're the girl." "Who are you, I don't even know you." 

  They are stranger to each other. He's still feel betrayed by his ex-girlfriend, meanwhile her still have feelings toward her Ex-boyfriend. How

How many times will you try to be with the one you love? Time travel always has consequences.

tiffany despised going to school because of someone named taeyeon

A one-shot fluff with domestic Taeny wherein Taeyeon is sick and Tiffany is confused yet also amused.