Haeun hasn't seen Jongin in three years, well not physically. He's all over the television and radio promoting with his group EXO. Time hasn't made things easier for Haeun, her love for Jongin hasn't changed and no matter how much she tried to forget about him, he would always have a way of taking over her thoughts especially on the most romantic day of the year, Valentine's Day. But this Valentine's is different, she recieves a letter from Jongin and this letter changes everything for Haeun.

I, Park Sooyun am in love with my brother's best friend. Every time I'm around him my stomach is in knots and I always seem to find some way to embarrass myself. So I have been avoiding him at all costs. But it's kinda hard when your brother is always with him! Honestly I don't know how much longer I can keep avoiding him. Help me!