Nagi, a 28-year-old office worker who thought she was balancing love and career perfectly, gets blindsided when her fiancé of two years drops a bombshell: "I got someone pregnant—we're done." After drowning her sorrows in alcohol, she wakes up... in a stranger's apartment—belonging to a man named Rui Kirigaya! Turns out, she was the one harassing him while drunk. Just when she thinks she'll never see him again, fate reunites them at work! Now this stone-faced, intimidating man keeps telling her "Stay away," which only irritates her more. But Rui's cold demeanor hides a troubled past and secrets he can't reveal—