I'm going to raise the saintess I'm taking care of to be a villainous young lady, because I'm fed up with the prince who is clearly intent on abandoning me.

The Duke's Daughter Tweedie was ordered to hire a certain woman as a tutor in exchange for maintaining her engagement. Her name is Hal. A saint summoned from another world. Crown Prince Jade apparently intends to eventually take her as his concubine. Upon learning this, Tweedie was furious at the prince's selfishness. (I don't care what happens to my engagement. But Hal――――I will not give her to you) And so she devises a plan and resolves to raise her. Into a splendid noblewoman like Tweedie, whom the prince detests. ※Also published on Kakuyomu.