The drama is set in "1/2 Café". It tells the story of the owner Joyce (played by Yang Siyong) who pioneered the "C&F (Coffee and Friends)" service in the coffee shop, aiming to provide offline matching opportunities for coffee lovers. One day, Marco (played by Wu Zhaoxuan), known as the "breakup master", started a "breakup agent" business in the store, which made Joyce very dissatisfied! One helps people tie the red line, and the other helps people break the roots of love. The two people who dislike each other deepen their understanding over cup after cup of specialty coffee and become life partners who support each other.