How would you feel if you were betrayed by the person you devoted your life to? Something similar happened to Iona, who was the loyal dog of the Tyrant Emperor, but the same lord abandoned her and her husband stood by her side in her death.
Fortunately, she got a second chance and woke up in the past.
"Lord Leroy, please marry me. I will definitely make you happy."
And the first thing she decided was to repay her husband for the support she never deserved... In her own way.