Oh, I really love tea in various range, but It really seems strange that everybody enjoys every tea Choe serve. For example, in my culture, we drink a lot of black and herbal teas, but high-grade green teas are uncommon: most people drink green tea+mint in bags, and can't tell tieguanyin from gunpowder. Moreover, people don't enjoy drinking proper green tea, because "it tastes like a broom in hot water". And these people are used to teas, not coffee as described in the comic! It's hard to introduce new products and you need experience to enjoy complicated tastes: high-grade tea, wine, old cheeses, caviar, etc.
It's nice and important part that Choe has her own passion and she masters something, but the more people enjoy every single thing she does, the stupider and falser plot looks.
I'm not even asking why eastern authors think that RANDOM RIBBONS AND RUCHING EVERYWHERE are elegant and beautiful.