Tenshi na Konamaiki

Six years ago, nine-year-old Megami Amatsuka happened to help a wizard out of a jam, and the wizard gave him a magic book. Upon opening it, Megami wished to become "the manliest of men," but the clown inside the book transformed him into "the womanliest of women" instead... The only person who witnessed this event and knows the truth is Megami's close friend, Hanakaiin Miki; in everyone else's memory, Megami's identity as a boy has been erased. Thus, Megami lives out his ten-year school life post-transformation as a stunning beauty who makes boys drool and girls jealous. However, "her" personality remains tomboyish and prone to fighting (with skills to match). Souga Genzo, a notorious student at the middle school, has never won a fight since meeting Megami, and even had to be rescued by Megami, whom he lost to—truly pathetic. Meanwhile, in his class, students like Ichiro Fujiki and Tasuke Yasuda have formed an Angel Megami Protection Squad, willing to do anything to protect their princess? All in all, Tenshi na Konamaiki is a comedy-filled school anime story.