Onii-sama to Yobinasai! #1

Onii-sama e...—known in English as Dear Brother—was originally serialized in the manga magazine Margaret starting in 1975. Created by Riyoko Ikeda, the series emerged during a transformative period for shōjo manga, where artists began exploring complex psychological themes and intense emotional dynamics within the rigid, hierarchical setting of an elite girls' high school. Ikeda, already celebrated for The Rose of Versailles, utilized the school's social environment to delve into issues of class, sexuality, and the nuances of adolescent obsession.

The visual design of the series reflects Ikeda's signature high-drama aesthetic, characterized by expressive character portraiture and intricate panel work that emphasizes the internal lives of the protagonists. Upon its initial release, the manga was noted for its departure from standard romance tropes, offering a darker and more introspective narrative that was sophisticated for its time. It remains a foundational work in the genre, influential for its pioneering approach to yuri themes and its enduring legacy in Japanese popular culture.