gao xing (played by xu lu)'s father is a famous barista. after his death, he left behind a thick precious coffee pen bbb。 gao xing’s biggest dream is to be able to inherit his father’s career one day. however, his family’s financial difficulties and as the only pillar, gao xing came to prince coffee shop to apply for a job and became a barista there. gao xing's boss is a man named jiang shangwu (played by yang yan). gao xing concealed his daughter. at the beginning, there was a big conflict between the two due to various misunderstandings. it can be said that they were pointed at the top of the wheat. however, as the times went by, gao xing's persistence in coffee touched jiang shangwu, and the two became close friends in their careers and life. qin zhemo (played by wang yang) is jiang shangwu's cousin, and his appearance complicated the relationship between several people.