Lu Ya, an incompetent descendant of the Great Tang Tea Sage Lu Yu, is reborn as the heir to the Tokyo Mutai An teahouse—Sen · Shoyu Sai · Rin'ya Koshi, an 18-year-old on the verge of bankruptcy. Before the tea room is sold, he awakens a strange system: matching with various tea girls, constantly improving his tea skills. This is a story of using the majestic style of the Han and Tang Dynasties to defeat various masters and green teas, step by step becoming the Reiwa Tea Saint. (No poison, no abuse, blood, sweet)