Ano Oni Kyoushi ga Boku no Ane ni Narundesuka?

Explore the captivating world of Ano Oni Kyoushi ga Boku no Ane ni Narundesuka?, a captivating manga that masterfully blends Comedy, Ecchi, Manga, Romance, School life, Shounen, Slice of life. Created by the talented Nekomata Nuko, Hina Hime. Experience this thrilling series for free at MangaSSS, where you’ll find a rich collection of manga to explore. With 21 chapters translated into English and more on the horizon, there's never been a better time to start your adventure. Be the first to know—create an account today, bookmark Ano Oni Kyoushi ga Boku no Ane ni Narundesuka? and never miss an update!

A boy is initially overjoyed at the news of him having an older sister, due to his father remarrying to a woman who has a daughter. That is, until he finds out that his new sister is actually his school strict PE teacher, Shina. With his father going off to live with his new wife, the boy will live with alone with his new sister. In their new life together, the boy finds out that Shina at home is completely different from Shina at work: clumsy, scared of insects, and kind.