Otome wa Boku ni Koishiteru
English name: Otoboku: Maidens are Falling for Me!
Genres: Comedy, Drama, Romance
Type: TV, Episodes: 12
Aired: Oct 8, 2006 to Dec 24, 2006
Studio: feel.
Source: Visual novel
Rating: PG-13 - Teens 13 or older
Synopsis:
Mizuho can't believe his ears when Grandpa's will is read out. Grandpa's final wish is for Mizuho to attend the same academy as Mizuho's mother. The catch is it's an all-girls school. With the help of friend Mariya however, he gets a makeover good enough to fool everyone at the academy. 

(Source: ANN)