Romance Between Brother and Sister

The thin girl Qiu Luo and the fat girl Cai Cai have completely different values, but they are the best sisters and friends; After graduating from college, Qiu Luo and Cai Cai came here, Beijing, with their beautiful vision and yearning for the future; By chance, they became roommates with a boy named Wang Xing who was three years younger than them, and the three of them began to live together; So, love, friendship, family affection... Sprout, grow, bear fruit, and bloom here; The ending is unexpected. Where will Qiu Luo's fate, Cai Cai's fate and Wang Xing's fate be?