This story is about yours truly, GuiGui and Taecyeon. 

Summary:

 Love is always changing.  You never know who you will end up falling in love with.  This is true for Taecyeon.  He is super rich and the solo heir to a big corporation.  He has it all: money, power, and a wonderful girlfriend names Yoona, who he had been dating for the last 2 years.  He believes that they are perfect together, a match made in heaven if you will.  He even asked her to marry him a few times, but with each time; she refuses, due to the fact that she is still pursuing her dreams of becoming a well-known model.  One day, Taec’s father informs him that he has found the perfect girl for Taecyeon to marry and if he refuses, he will have to kiss his entire inheritance goodbye.  His father introduces GuiGui to him.  GuiGui is also from a very wealthy family; however, due to a car accident when GuiGui was 15, both of her parents had died.  Taecyon and GuiGui’s fathers were close friends since their childhood days.  So he helped care for GuiGui after the death of her parents.  However, Taecyeon had never met GuiGui.  Taecyeon’s father informs him that he had made a promise with GuiGui’s father back in the day when both of their wives were pregnant.  They made a promise that both of their kids will get married when they turned 25.  He also told Taec that it has always been his dream to make GuiGui his daughter-in-law because he loves her just like she was his own kid.  Taecyeon meet with GuiGui to let her know about his situation and tells GuiGui that if he must marry her to keep his inheritance, it will be based on a contract that the marriage will not last longer that one year.  At this time when all of this is going on, Yoona was overseas competing and training for a modeling job.  How will things ends.  Will he fall in love with GuiGui and void the contract, or will he leave her after their year is up?