From the Start, She Sold Herself to Bury Her Father, While the Other Sold Herself to Bury Her Entire Clan

From the start, the heroine Su Qun is selling herself to bury her father, while Jia San beside her is selling himself to bury his entire clan. Passing by, Master Wang pays for them both and takes them back to his estate. Jia San is assigned to haul manure, while the heroine gets off more lightly and becomes a maid at the estate. What fate awaits these two, and how will their paths cross?