CHAPTER 1 (memories)

yoona and baekhyun is bestfriend since they was 5. they always play around together until now when they was 18. yoona has lot of admire same like baekhyun.. yoona got boyfriend name oh sehun while baekhyun has no one. baekhyun feel jealous when yoona and sehun together. will yoona choose baekhyun as her boyfriend or just as her bestfriend?