College Freshman Si-ying gets a part-time job at "Cafe. Waiting. Love" coffee shop, where she befriends Abusi, a tomboyish barista who can make any coffee the customers request, the beautiful and mysterious cafe owner, and Zeyu, the bot who always sits in the same spot in the cafe and seems to be very popular with girls. A-Tuo, a college senior with legendary tales, comes to "Cafe. Waiting. Love" one day where he runs into Abusi, who was the reason for his breakup with his ex-girlfriend. A-tuo is teased by his friends, and Si-ying stands up for him and the two become good friends. Deeply attracted to Si-ying's sense of right and wrong, A-Tuo introduces these friends to Si-ying, whose life becomes more enriched and colorful as a result...