Based on the erotic manga by Tsukiyoshi Hiroki. Four school girls have sex with their teacher.

“Mana supply is a holy deed, so we’re not embarrassed!” At Witch School, girls are trained to produce the best “mana supply” (sperm). Sex is no mere leisure activity, nor is it a brutal affair. Students are arranged in boy-girl pairs to ensure a constant supply. Mana enhances a Witch’s powers so she can battle the Eaters! It’s in everyone’s interest that everyone master all kinds of sex technique. More pleasure, better mana. Better mana, stronger Witch!

A 30-year-old juku teacher works down his “fckit list”, a list of girls, or types, he wants to have sex with. Story: One day, a 30 year old cram school teacher finds a list. But it’s not just any list. It’s a list showing girls that’ll accommodate his desires. Not hookers nor sluts… just girls, living their normal lives… fckin horny on the inside. Girls, with bodies so sexy that even the Gods of lust would turn their eyes! His target this time? A foreign exchange student that loves Japanese subculture.