The story revolves around Haruki and his four sisters: Mutsuki, Yayoi, Uzuki, and Satsuki. While their life may seem monotonous—aside from the fact that Haruki’s sisters don’t give him a single opportunity to rest, lecturing him about every perceived mistake and playing tricks on him—Haruki still likes his life.
《群居姐妹》作品描述與姐妹住在集體住宅區的多女主角愛情喜劇。姐姐 夢月總是會以不符合姐姐身份的言辭向弟弟撒嬌,而妹妹 彌生又是一個熱愛折磨哥哥的人,,再加上年紀更小的一對雙胞胎妹妹、把哥哥當作玩具的 羽月&咲月,即是男主角 晴輝與一位姐姐、三位妹妹群居在一起的多角曖昧故事。