High school classmates and now attending the same university, Ahn Hye-seo and Choi Ah-yeon. To each other, they are 'ex-girlfriends.'\n\nDespite telling herself she needs to forget, Hye-seo often finds herself intensely following Ah-yeon’s life. It has become a routine for her to get hurt alone and heal with alcohol.\n\nBut that 'alcohol'! Whenever she drinks, she actively tries to initiate skinship with Ah-yeon, something she normally wouldn’t do. Yet, it seems that the usually indifferent and chic Ah-yeon doesn’t completely dislike Hye-seo’s skinship….