A Marriage of Formality Between the Saintess and the Cold Prince

The flower-shaped mark that designates saintesses appears on Saya, so she must undergo a secret ritual with a member of the royal family. That ritual is intercourse with the crown prince! Even though it's being done to awaken her saintly powers, she can't help but feel pleasure from being touched by him. But Saya is conflicted, because she has heard the crown prince say, "Even if the saintess were to appear and marry me, ours would be a marriage in name only." Saya knows that she will never be loved by him, but she cannot stop herself from falling. Then, the crown prince sweetly proposes to her... Source: Renta!