Shojijou ni Yori, Dansou hime wa Toubouchuu!

Elceline has 9 brothers. However, all of them have a sister complex so severe that none of them have gotten married. For their sake, she disguises as a man and escapes to the neighboring country. On her cousin's recommendation, she is employed by the prince's side. She tries her best to conduct herself as a man, but why is it that here too she continues to get doted on?!