On Mondays, both teachers are there, and it seems like they alternate between teachers depending on the day of the week. There's a flu epidemic these days, so even though I went on a holiday, there were still a lot of people. You can register and visit on weekdays using the Ttoktak app, but not on holidays or Saturdays. If you want to see the doctor more quickly, you have to go early and register. I arrived around 8:30 on Sunday and there were already about 5 people registered ahead of me. My child also ended up with the flu, and had been vomiting since the night before, so I went to a place where I could get a shot and lay down and got a Ringer's solution for about an hour and a half. There were two places to get a ringer. One was for people with contagious diseases like the flu, and the other was for people without contagious diseases. This building has a parking tower-type parking lot, but on holidays, there are no people, so the basement is narrow. If you don't arrive early or there are no spots available, you can park at the Lotte Mart across the street on weekends for five hours free. It's a bit of a walk in the cold, but it's better than getting ticketed for illegal parking.