The Reborn Science-Minded Legitimate Daughter's Comeback

This is a sad story. As a legitimate daughter, her daily life should be full of scheming and the refined arts. But Duanmu Qinghua had this to say: This isn't my field of expertise!!! Yes, in this world torn apart by "war," she has two golden fingers: she is reborn and has transmigrated... But she's a science girl! This is a recipe for disaster! What am I supposed to do with you, damn it! Medical studies mean mastering chemistry and pharmaceuticals. Sewing and embroidery? I could get you a packet of explosives, sure. Music, chess, calligraphy, and painting? I've got arithmetic and geometry equations. At last, she found a golden finger she could actually use: a portable space! Only to discover she can't grow vegetables, has no special abilities, and as for cleansing her meridians? She could at least ease your cramps during your period. With a stepmother and stepsisters who are green with envy over her dowry and status, concubines and half-sisters lying in wait, and even a father and grandmother intent on spoiling her to death, not to mention all those legitimate and illegitimate younger brothers... Qinghua can only sigh: The road ahead is long and arduous... Dumping a scumbag wins her someone who'll never leave her; tormenting a wicked woman gets her a loyal puppy... So, is it really a good idea to throw a science girl into the battle for the household!?