Konyakuhaki No Sonosaki Ni

Konyakuhaki No Sonosaki Ni Manga :

Unavoidable fake love story!?
"I've lost to wealth, huh..." said Esther Fleauesse, a rural noble's daughter that once thought she could marry her childhood friend and live a happy life. Her life took a sudden turn caused by her engagement's failure and the unique ability she possessed to "see people's true feelings through mana". The one waoting for the heart-broken Esther was a fateful encounter with The First Prince Arclain!! "Miss Esther, will you be my fiance?". Confused Esther can't stop flustering to the cunning charming prince's sudden proposal, aiming to own her ability. Securing her special ability for royalty, The Prince's "pretencious" doting daily life has started... However, Esther is gradually starting to fell for him...? It's a Cinderella Story started after her engagement fail!