Your Highness, This Is a Cupid Mission

Selena needs the crown prince to fall in love with the general's daughter, and she needs it done inside thirty days. She is a fairy with a poor record, and the god in charge of marriages has dumped her into the prince's bath with that single assignment. If the two are not a couple by the deadline, her soul comes apart. The prince himself gets in the way. Each time she ties the red thread between him and the general's daughter, he undoes it. She flirts with him to set things up, and he flirts back. He is poisoned at one point, and she risks her own life to save him. Later, when she is the one in danger, he covers her with his own body.