Five girls in their 20s share a house called Belle Époque. A year has passed since “Hello, My Twenties 1.” Each of them got a job, went back to school, is still trying to get a boyfriend, or is getting over her first breakup. One day, a new student arrives at the house with a letter she stumbled upon. The letter is filled with curses against one of the girls at Belle Époque. (Source: JTBC)