Love Equation

Renai Houteishiki
恋愛方程式

Main Story

Bad Teacher's Equation
Kusatta Kyoushi no Houteishiki· 腐った教師の方程式
manga

Atsushi Arisawa enrolled at Jougaouka High School in order to reunite with his childhood crush; Ma-chan, who is now the school's nurse. Strangely, Ma-chan's previously sweet personality seems to have radically changed beyond all recognition. Things are even more complicated when Atsushi's friend, Kouji, tries to put the moves on him. Atsushi just wants Ma-chan though, so perhaps if he gets to know the new, adult Ma-chan, he will find he is not so bad after all. But wait a minute...his name isn't Masami, but Masayoshi? (Source: Juné)

Source

Not Ready!? Sensei
NOT READY!? センセイ
manga

Murakami Hiroshi makes a living out of drawing yaoi manga, though he claims not to be gay. He has a girlfriend, yet regularly sleeps with another man, and even seduced his assistant. His sex life's a mess... will he ever figure out what... or who he wants? *Note: The first extra of volume 2 is the first chapter of Love Equation.*