More than or Equal to 75 Celsius.

Jae Eun Hong, the winner of an annual Winter Menu Tea Sommelier competition held by ALTDIF (a popular tea café franchise), is the tea master of their Hongdae branch location. She has to collaborate with Song Ju Cha, ALTDIF’s corporate marketing manager, to create a new winter tea course menu. However, the two are in regular conflict and disagreement over how the menu should be constructed. Will their working relationship lead to something more?