Hana to Otome ni Shukufuku o: Harukaze no Okurimono

In place of his sickly younger sister, Akiko, the main character, Akira, dresses up as a girl and attends a prestigious mission school for young ladies. She tries to live an ordinary life so that her true identity will not be revealed until her sister returns. However, she is noticed by the student council president and becomes the centre of a slapstick drama involving the entire school. Will the protagonist be able to act as a substitute for her sister safely…?