Kusatta Kyoushino Houteishiki

A 10 volume manga, also known as Bad Teacher Equation, created by Kodaka Kazuma. It also spawned two OVA.

Atsushi Arisawa enrolls at Jougaouka High School to be near Masami Shibata (Ma-chan) who was his childhood crush. Unbeknownst to Atsushi, however, Masami no longer works at the school and his brother, Masayoshi is now the nurse. Atsushi mistakes Masayoshi for Masami and is horrified because to him, it appears that Masami's personality has done a complete 180. Add to the fact that Atsushi's friend, Kouji Inagaki is totally in love and constantly trying to make-out with him, Atsushi's life at Jougaoka is hell..until he starts thinking that maybe the new Ma-chan isn't so bad afterall and that, maybe he actually likes the way Ma-chan is now. Until of course, he finds out that Masayoshi isn't Masami.

This Work Contains Example of:

 * Eighties Hair: Most notably Masayoshi who sports a mullet. Thankfully, Art Evolution kicks in and is not as noticeable in later volumes.
 * Art Evolution
 * Attempted Rape:
 * Bifauxnen:
 * Boys Love
 * Can't Hold His Liquor: Masami and Masayoshi. Kouji to a lesser extent.
 * Coming Out Story
 * Cute Little Fangs: Kouji
 * First Kiss:
 * Genius Ditz: Atsushi
 * Hot For Nurse
 * The Idiot From Osaka: Kouji
 * Manly Tears: Tooru sheds these quite often.
 * Yaoi Fangirl: Yuriko