The Heeseung Complex || Heeseung ||18+

Y/n Park has crushed on her brother Jay's best friend Sunghoon since they all were in high school. She is now 21 and she keeps a journal of all her deepest darkest fantasies about him.

When she attends a party she isn't supposed to be at, she goes to her room to find Heeseung is there, reading her fantasy journal. She is horrified and begs him not to tell.

He agrees to keep her dirty little secret from her brother and the others under one condition. She has to test out the fantasies in the book with him.