*Synopsis;

"If you were to reborn, I would fall in love with you once again. Even if you forget everything, even if you are reborn, I will definitely find you and once more, I will fall in love with you. And again, no matter how many times, our love starts here."

What if you were given a chance to live once again? Will you take the chance? A time capsule that is exploded cannot be recover. The end has been decided like a clock being wound up. Let's define the law of gravity. 

*The Casts;

Bae Suzy
Code Name: The Fragile Girl
Gender: Female
Speciality: Photography, piano
Other:
Been in coma for three year.
Lost her parents in the car accident.
Doesn't remember her past.
Was home-schooled until the second semester of her third year.
Is currently in her third year of high school.

Kim Myungsoo, L
Code Name: The Ice Prince
Gender: Male
Speciality: Piano, Artist
Relationship: Her Target
Other:
Thinks that all girls are the same due to his past.
Is currently in his fourth year of high school.

Kim Jinwan, Sulhu
Code Name: Guardian Angel
Gender: Male
Speciality: Studying
Relationship: Her Step-Brother, Best Friend
Other: 
Grew up with Suzy and is her only best friend.
After the car accident, his parents adopted Suzy.
Currently in his fourth year of high school.