Based on your description, I think this is the right one
https://www.mangago.me/read-manga/i_became_the_wife_of_the_male_lead_bored_corona_kids_version/
Based on your description, I think this is the right one
https://www.mangago.me/read-manga/i_became_the_wife_of_the_male_lead_bored_corona_kids_version/
Thank youuuuuu... This is the one
Sorry about the double post. Something went wrong
(〜￣△￣)〜 it's fine darling
I don't really recall this manhwa, but it was a gray haired female that sent, and abandoned by her father to the romured Duke of the another country but instead of being killed, she became his adopted child, and the girl become a strong magic knight og his adopted father. and, she became the heir of his adopted father. and her goal is to revenge to her father, family who wish her death.