The first time I went there was about 6 years ago, when I was in my late 20s and there were 5 of us at a drinking party. Maybe because I was young and didn't like my clothes or the atmosphere, the master at the entrance told me that we aren't a place where you can make a fuss. He glared at me, but I told him that I understood the bar rules, and he led me to a table. Suddenly, we were having a baptism, and we were drinking while talking quietly under our breath, but for some reason the master was the noisiest lol. I was talking loudly with the regulars, and my friend couldn't help but hear that he was the noisiest. One word. It seemed like the master didn't make the cocktails, but had his apprentices make them. The first time I was completely licked. However, the way the master shakes the shaker is cool, and the rhythmic sound of the ice hitting the ice is pleasant. I was impressed by how flexible each movement was. After that, I went there several times alone or in pairs. If you wear a jacket or wear a jacket and the atmosphere matches the master's glasses, you will be taken to the counter and he will talk to you in a friendly manner, and you will be able to make delicious cocktails right in front of him.
The atmosphere is authentic and it's a great bar. As other people have commented, it's an athletic bar, and unless you're mentally strong, you won't be able to go there many times lol.
I think he is a master at choosing customers based on his craftsmanship, but strangely enough, it's a bar that's just that. I'm also a fan of YouTube.