いじわるお兄ちゃん (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Jurie, who works for a cosmetics company, is eyeing up her handsome neighbor, Meguro, when suddenly one day the two of them decide to have a drink together in Jurie's room! Just as it looks like it will be an unforgettable night, Meguro says a shocking word: "Nice to meet you, sister"! The next day, he gets a new job at Jurie's company... As a neighbor, colleague, and brother, Jurie is at the mercy of Meguro!

(Translator: DeepL)