kageyama Tobio is the crown prince of a kingdom who was cursed by a witch when he was still in the womb, he was cursed to lose his emotions and not be able to feel emotions for the rest of his life

you are a lady from a poor duke's family, because there was no lady who was willing to marry the emotionless Kageyama Tobio, then Kageyama's mother proposed to you and the reward was the title of queen, but Kageyama refused and you came to the palace to convince him, but you accidentally kissed him and made him blush, the first emotion he let out

"Prince kageyama, I am an emotional expert! Do you believe it now? How about we make a contract? You wont regret this" you say with a big grin