Not The Filler Girlfriend: Bestie Alliance

Shen Wu and Xu Yin accidentally double-transmigrate into a 1970s novel, becoming the hated villainesses. They immediately face a difficult mother-in-law, meddling sisters-in-law, and sabotage from the original heroine. But these modern best friends refuse to wait for fate. With their advanced vision and wisdom, they join forces with the book's male and female leads to seize business opportunities in a resource-scarce era. Starting from zero, they overcome every obstacle, shatter their destiny as fillers, break free from shackles, and become shining winners of their own lives.