My Husband Possessed the Protagonist

Read manhwa My Husband Possessed the Protagonist / Driven into marriage with a foreign duke's household, she finds her husband timid and stutteringbut kind enough that life might be bearable. Then, with one word from a tyrant, the ducal family collapses, and her husband is found lifeless after taking poison until he comes backand he's changed. "I don't want to be a useless husband to you." From housework to shameless flirting, he suddenly excels at everything. Is this really the same man?