This drama continues the realistic style of the previous two parts, telling the story of five girls with different personalities and characteristics who have just moved into the same floor of the Ode to Joy community and face the difficulties of life together, and each of them grows and transforms. The five girls are Ye Zhenzhen (played by Jiang Shuying), who works in life science research, the mysterious and cold company personnel Fang Zhiheng (played by Yang Caiyu), the hotel manager Zhu Zhe (played by Zhang Jianing) who shares a house, and He Minhong (played by Zhang Huiwen) and Yu Chuhui (played by Li Haofei) who have just worked for a few years. Although these five girls live and work in different environments, there are quarrels and understandings, doubts and reconciliations, but more often they help each other, sincerely exchange opinions, face the difficulties of life together, work hard, work actively, and grow together. The 22nd floor of Ode to Joy Community is like a safe haven. The five girls care for each other, help each other, and grow up on their own. However, their differences in personality and experience also make them react differently when facing the same thing, which triggers conflicts. They think through conflicts, learn to be self-reliant and strong, and face life with a more positive attitude.