haha i can see how you thought that 😂 it's a tea etiquette thing though! if you're interested, you can check out the link below~
https://pathofcha.com/blogs/all-about-tea/the-5-types-of-tea-that-should-be-rinsed-before-brewing
@alenas I agree! i feel like kangmin is more honest and straightforward with his feelings? maybe thats why. after seeing the hairstyle change with Sihyeong im oddly disappointed? lol