Tougou-Ka E Totsuida Hanashi summary:

Almost all humans are born with a divine blessing from G**. However, in rare cases, a human being without a divine blessing is born ? a "cursed child". Aya Matsukata is such a "curse child". Because her divine blessing did not manifest, her father almost kicked her out of the house when she was young. Ever since, she has been nothing more than a servant in the Matsukata family. Every day she is abused by her family, especially her younger brother, Itsuki, who has a powerful divine blessing. One day, the clairvoyant Togo family approached the Matsukata family about a marriage proposal. Everyone thought it was a proposal for a marriage between the eldest daughter of the Togo family and Itsuki, but on that destined day, the Togo family's eldest son, Masaharu, came over???+