This is the Japanese-style cafe "Lukaedo". The owner, Shui, is in charge of tea, Gray is in charge of latte, Seki is in charge of cooking, and Tsubaki is in charge of desserts. This is a hidden popular shop run by four people with their own unique skills. While "entertaining" customers, they occasionally solve their "troubles". The cafe is the stage for a sincere story woven by four perfect people. Well, who is today's guest...?