Oniisama e...(おにいさまへ…, lit. To [my respected] elder brother) is a Japanese manga series by Riyoko Ikeda. It has been adapted into an anime series that aired on NHK from July 1991 to May 1992. The series originally started out as a manga in the early-mid 1970s. The story is about a 16 year old girl Nanako Misonoo(御苑生奈々子Misonoo Nanako) who attends a prestigious academy and deals with life as a high school student via writing letters to her "brother". The manga has never been officially released in English, though it has been translated into Italian.