The series revolves around a small core cast typical of adult "harem" setups:
Table_title: Chiaki (Uchi no Otouto Maji de Dekain Dakedo Mi ni Konai?) Table_content: header: | Chiaki | | row: | Chiaki: Kanji | aniSearch.com Uchi no Otouto Maji de Dekain dakedo Mi ni Konai? (2021) uchi no utouto maji de dekain %C3%B1ame manga
Nao’s older sister, who initiates the entire situation by inviting her friends to "tease" him. The series revolves around a small core cast