Zutaboro Reijou wa Ane no Moto Konyakusha ni Dekiai sareru  

Loved by Her Sisters Former Fiancée, ずたぼろ令嬢は姉の元婚約者に溺愛される, Loved by Her Sister's Former Fiancée, Betrothed to My Sister's Ex, Loved by Her Sister's Former Fiancé, Betrothed to My Sisters Ex

The story of Marie, a baron's daughter who felt overshadowed by her more successful sisters, is one of love and happiness despite her hardships. She had long hairballs and wore tattered work clothes, while her sister received attention from a wealthy noble who died on their way to marriage. To repay the dowry owed to the earl, Marie was sent as a substitute bride. However, it seems that there was a misunderstanding about the proposal, making it impossible for Marie to fulfill this role.