CHEEKY ANGEL (Tenshi na Konamaiki), by Hiroyuki Nishimori. First published in 1999 and first published in North America in 2004.
PLOT:
Megumi is a brash young boy who simply wants to do martial arts and to grow up into the manliest man ever. A chance encounter with a wizard leads to Megumi getting a magic book, which in turn misinterprets his wish and turns him into a girl. By the time he reaches high school, Megumi has become renowned just as much for his beauty as for his fighting prowess, and class thug Soga becomes her number one fan. Megumi is conflicted; he still sees himself as a heterosexual man at heart, so the last thing she would want to do is fall for a man...right?
