Yu Jimin isn't very intelligent and lacks ability in school. She is in class F, the least intelligent class in her grade. Despite this, she has been in love with the school's most beautiful and most intelligent girl, Kim Minjeong, ever since she saw her give a speech at the high school entrance ceremony. In her third year of high school, she writes Minjeong a love letter but is rejected instantly. She is crushed to see her letter was not even looked at and decides to give up on the jerk who rejected her without even reading it. On the same day, Jimin's house is hit by a shooting star and collapses. As it is being rebuilt, her mom gets a phone call from her longtime friend and is invited to stay with them. When she arrives, she is in shock to see that this is the house of Kim Minjeong and her family Although Minjeong shows a cold attitude, Jimin realizes she can't help but love her. What will happen when fate takes over, and Jimin's chance of winning Minjeong's heart falls in her hands? this is based on a japanese soap opera titled Itazura na Kiss.