He's Just My Brother, Your Grace!

By Yeo Ro-Eun (여로은) · Joi

Also known as 8 saved titles

그 남자는 제 친오빠인데요,공작님 · ko · originalDuke, That Man Is My Real Brother · enHe's Just My Brother, Your Grace! · enHe's My Real Brother, Duke · enDuque Él Es Mi Verdadero Hermano · es-la公爵様、その人は私のお兄ちゃんです！ · jaGeu Namjaneun Je Chinoppaindeyo, Gongjangnim · ko-ro那个男人是我亲哥哥，公爵 · zh

In a fantasy novel, I suddenly became Astel, the younger sister who never appeared. While my brother Cassian is fighting for revenge of the clan, it is my duty to find and deal with the final villain that remains unrevealed even at the end of the series! In order to do that, I must first enter the mansion of the northern duke, where the traitors of the family are hiding. But somehow, I became the 'mate' of duke Anais, a beast and a prime candidate for the ultimate villain. Besides... "Kiss me now, Astel." In order to live, I have to communicate with my 'mate' every day, but there’s no such thing in the original! "Shouldn’t we go see the ocean you like today?" "I-I don’t think I can. I have to go see Mr. Cassian today." The duke gritted his teeth with a cold face. I was a little scared when I saw this look on his face. Maybe he’s teething? Because he’s a wild beast! === The other day, when I was living under the duke’s care. My brother, Cassian, left his son in my care for a while. However, it seems the duke has been entangled in a huge misunderstanding. "They will become our child." "What...?" "Cassian Gray will disappear from this world right now, so you won't be his bride anymore." Yes...? Since when did I become Cassian Gray’s bride? --- Original Webtoon: Daum, KakaoPage Official Japanese Translation / 日本語