If you are looking for the official source or similar high-stakes "husband-saving" dramas, you might check these platforms:
: Features high-quality translations of "second life" romances. If you are looking for the official source
: Home to many "villainess" series like The Villainess Turns the Hourglass . If you are looking for the official source
The story typically follows a female protagonist who has lived through a tragic first life where her husband (often a cold Duke or a neglected Crown Prince) was ruined, executed, or died due to a "missed chance" or a misunderstanding. Having "despaired over and over" in her previous timeline, she is reincarnated or sent back in time. Her new mission is to manipulate events—aiming for that specific "chance"—to ensure her husband’s success and survival. If you are looking for the official source