Otomen by Aya Kanno [summaries]

[summary from VIZ Shojo Beat] Asuka Masamune is a guy who loves girly things--sewing, knitting, making cute stuffed animals and reading shojo comics. But in a world where boys are expected to act manly, Asuka must hide his beloved hobbies and play the part of a masculine jock instead. Ryo Miyakozuka, on the other hand, is a girl who can't sew or bake a cake to save her life. Asuka finds himself drawn to Ryo, but she likes only the manliest of men! Can Asuka ever show his true self to anyone, much less to the girl that he's falling for?

[volume 1] one, two, three, four
[volume 2] five, six, seven, eight
[volume 3] nine, ten, eleven, twelve
[volume 4] thirteen, fourteen, fifteen, sixteen
[volume 5] seventeen, eighteen, nineteen, twenty
[volume 6] twenty-one, twenty-two, twenty-three, twenty-four
[volume 7] twenty-five, twenty-six, twenty-seven, twenty-eight
[volume 8] twenty-nine, thirty, thirty-one, thirty-two
[volume 9] thirty-three, thirty-four, thirty-five, thirty-six
[volume 10] thirty-seven, thirty-eight, thirty-nine, forty
[volume 11] forty-one, forty-two, forty-three, forty-four
[volume 12] forty-five, forty-six, forty-seven, forty-eight
[volume 13] forty-nine, forty-fifty, fifty-one, fifty-two
[volume 14] releases in English on January 1st, 2013
[volume 15] releases in English on May, 2013
[volume 16] releases in English on August, 2013
[volume 17] last volume