Hakushaku-ke wo Mamoru Tame ni Toriaezu Konyakushimashita - Neet no Reijou wa Shuubun wo Harashi Ijiwaru na Koushaku-ke ni Taikou suru Tame Ichikabachika no Konyaku wo Ketsuden suru

Marina Adelaide, the daughter of a count, has been living a life of NEET due to the unjustified spread of ugly rumors.
Suddenly, she receives the tragic news that her parents' ship has gone missing!
She has a younger brother, but he is sickly and young, and if nothing is done, the Adelaide family will be taken over by the mean-spirited Marquise Lannas.
In order to protect her family, she becomes engaged to a stranger, Liszt, a civil official, but what happens?
Will she be able to stand up to the Marquise's plot?
A miraculous romance is about to begin!