Mayo Chiki! (2010)

Eines Tages bekommt Sakamoto Kinjirou, der bei der bloßen Berührung eines Mädchens schon Nasenbluten bekommt und daher eine große Phobie gegenüber Frauen hegt, zufällig heraus, dass der siebzehnjährige Konoe Subaru, Butler seiner Klassenkameradin und einzige Tochter des Präsidenten der Privatkademie Suzutsuki Kanade, eigentlich ein Mädchen ist. Um ihr Geheimnis zu wahren und den damit verbunden Schulrausschmiss zu verhindern, wird Kinjirou um Hilfe gebeten...

Quelle: www.anisearch.de/manga/6985

Blurb:
Kinjiro Sakamachi is a "normal" seventeen-year-old boy who happens to suffer from an abnormal fear of women, otherwise known as gynophobia. His phobia, which surfaces as an occasional nosebleed, has been kept more or less under control... until now.

A fateful visit to the school bathroom turns Kinjiro’s world upside down, as he discovers the dashing and popular Konoe Subaru is actually a girl! What’s worse, the principal’s cruel and domineering daughter, Kanade Suzutsuki, has every reason to keep this secret from leaking out, and makes it her life’s work to torment Kinjiro while attempting to cure his gynophobia.

Is Kanade simply sadistic, or does she really want to help Kinjiro overcome his fears? It makes no difference to poor Kinjiro, because his life has just become a living hell.

Source: www.anisearch.com/manga/6985