Chanyeol is Gongchan's bestfriend since birth. Having a crush on her bestfriend was a huge deal for her. She wanted to confess her feelings but a girl named, Subin-- was also in-love with Gongchan. Gongchan never knew about Chanyeol's affection for him, Unfortunately Gongchan picks Subin besides of Chanyeol, not wanting their friendship to break. Hurted Chanyeol's personality changes of having a heart painfully broken by a stained scar, that would remind her of how she sacrificed almost all her life for Gongchan.