For Man Lu, she would wonder why a sister of a mother's compatriot, a person who wants to betray herself for the livelihood of the whole family and her sister's studies, will suffer from supercilious look and even family rejection; A person can receive a good education and get a job that is not enough to support his family but can make him worry about food and clothing.
While watching Half-Life, I really don't understand why Manlu gave up her love and future and became a prostitute that everyone spurned for her gifted sister to study, and then her sister couldn't let her leave the carnival after work.
If so, her sacrifice is meaningless. Although it was a bitter time, if those blood-sucking "relatives" could give up the life of being servants and maids and do their best to work, everyone might not be able to support themselves.
If other family members despise Man Lu because of ignorance, then Man Zhen, who used Man Lu to sell his own money to go to college, became a literate person, but said nothing about his family's unfair attitude towards Man Lu. In my opinion, she and her family who despise Manlu are silently on the same side.
Even if you don't go to school, you can survive. Why should you step on the youth and chastity of your prostitute sister to be a pure and clean female college student? She is sympathetic and contemptuous.
Everyone can see that Man Lu is old and faded, and she can't earn any money. She can only find a man as tasteless as Zhu. However, no one thought about changing the fate of Man Lu, and even her own sister never thought about dropping out of school to work to reduce her sister's burden.
Really, it was a real crime that Manlu later framed his sister, which ruined Man Zhen's life. Even if Man Zhen owes her more, this debt of gratitude can't be repaid with the rest of his life. Only this crime was not committed by Manlu alone. When Manlu stepped into the carnival and walked into the campus, it was doomed to such a tragic ending.