The 7 days main up for the tax deadlines. (business people stressed and from time to time going through big costs)
https://muk-sos.net/%EB%AC%B4%EB%A3%8C%EC%9B%B9%ED%88%B0-%EC%9B%B9%ED%88%B0%EB%AC%B4%EB%A3%8C-%EC%9B%B9%ED%88%B0%EB%AC%B4%EB%A3%8C%EB%B3%B4%EA%B8%B0-%EC%9B%B9%ED%88%B0%EB%8B%A4%EC%8B%9C%EB%B3%B4%EA%B8%B0/