ちょっと留守にしていたら家が没落していました 転生令嬢は前世知識と聖魔法で大事な家族を救います

What's going on? When Countess Margarete returns from a year of study abroad, she finds her parents' house deserted! Her father had failed in his investments and was in debt, and his house and estate had been confiscated. In order to get their lives back on track again, the family decides to work together to pay off the debt! Margarete, who is actually a reincarnated person, uses her knowledge of her previous life and the holy magic she learned while studying abroad to invent idea goods such as grandson's hands and compresses, which sell like hotcakes. She also joins the Knights of the Holy Magic and attracts attention for her abilities...! As he is on the verge of escaping from the downfall, he discovers that his investment was a scam...? The family bond overcomes the obstacles and the drama of reversal begins!