The Rubelia Kingdom’s Tale ~ I Ended Up Cleaning My Younger Cousin’s Mess ~Rubelia Okoku Monogatari; ルベリア王国物語; ルベリア王国物語～従弟の尻拭いをさせられる羽目になった～; Rubelia Okoku Monogatari: Itoko no Shirinugui wo Saserareru Hame ni Natta; The Rubelia Kingdom's Tale; The Rubelia Kingdom's Tale: I Ended up Cleaning My Younger Cousin's Mess; 루베리아 왕국 이야기 ~사촌 동생의 뒷수습을 하는 신세가 되었다~; 鲁别利亚王国物语~我陷入了被迫给表弟善后的境地~

Alois, a man who works as an imperial guard despite being a descendant of the royal family.Elina, a duke's daughter who used to be the fianc of the crown prince, Gerard. Their destinies completely changed because of the crown prince one-sidedly annulling his engagement with Elina. However, due to the emperor's intervention, Alois is to return as a member of the royal family and wed Elina?! This is the story of two people who, because of their sympathetic natures, are toyed by their circumstances, but soon come to learn about love and how to nurture their feelings.