I can't not close out this month by shooting the metaphorical fish in the barrel - i.e., reaching deep into my boxes of BL manga and finding some silly-looking stinker to review.
MISTER MISTRESS (Aijin Incubus), by Rize Shinba. First published in 2005 and first published in North America in 2008.
PLOT:
Fujimaru is your standard horny hetero teen boy, and it turns out that his teenage libido is the key to unlocking the secret of his late grandfather's house: an incubus named Rei. Rei craves Fujimaru's body and the raging hormones within it, but Fujimaru isn't very keen on the idea. The more he tries to resist, the harder Rei tries to trick him into sex. How long can Fujimari hold out against such temptation?