Ookami Shougun no Ikenie no Hanayome

Timid Elise is treated coldly by her noble family because she is an illegitimate child. When she is ordered to masquerade as the princess and marry General Wolfried, a ruthless military official who killed her fiance in the war, Elise has no choice but to obey. But to her surprise, the general not only knows her true identity but also tells her she can avemge her dead fiance if she wishes! Now it's up to Elise to decide what to do about her new husband, who wears a fierce wolf mask but turns out to be surprisingly kind... (Source: Tappytoon)