The Young Masters' Concubines

Weiwei lost both her parents when she was young and grew up eating food shared by the neighbors alongside her elder sister. After her sister came of age, the prince's household chose her as a concubine for their heir, who was suffering from tuberculosis, hoping the wedding would bring him good luck. Weiwei went with her to the household. As the years passed, Weiwei blossomed into a graceful young woman, and before long, four wolves in the household had their eyes on her...

[Beautiful, timid girl in distress x purehearted little ray of sunshine]

P.S. The four wolves are the household's four young masters, not the heir with tuberculosis. The heroine is forced to serve them as a concubine at different times, but she does not sleep with them simultaneously. This is a one-on-one romance. The male lead is not one of them; he is someone else.

Theme: Keep working hard and never give up