Some people might question one's manhood if they lose to a woman in a battle of strength. Some might say it takes a bigger man to take that loss in stride. Well, if that's the case the guys are definitely men, as their game plan hinged upon their loss to the Underground Student Council's Vice-president, Meiko. They did not, however, expect to lose in the manner in which they did.

Kiyoshi managed to put up, for a brief instance, a fight against Meiko. His downfall, even more than his full effort not comparing to her thirty percent, was that every time his arm went down, he saw a glimpse of nipple. Surely the nip-slip can't be a ruse devised by Meiko. Regardless, Kiyoshi finds himself in a nipple la-la land. When he comes to, his arm is in quite the unnatural position.

The big battle is between Andre and Meiko. Andre and his large form proves to be quite the match for Meiko. The true reason behind his ability to last so long was the long singular hair hanging from his nipple. Much like Kiyoshi, every time Meiko caught a glimpse of the nipple hair she was whisked off to a land of imagination and sapped of her energy. Enraged, she yells out, spittle flying onto Andre's face draining him of his energy, giving her the upper hand, and again revealing the dreaded nipple hair.

The more Meiko screams at Andre, the more pleasure he derives. Eventually, Meiko finds out a way to not fall under the spell of the hair. All of Meiko's spitting has caused immense pleasure for Andre, and with the pin, he lets out a final cry of pure pleasure. All the screams of pleasure definitely make this a more ecchi arm wrestling match than we're used to.

Imagine, you are one of the chosen few boys given to chance to be the first to attend a once all-girls school. You could wait to befriend a girl, which given that there are 200 girls to every guy, you're bound to hit it off with someone sooner than later. Or you could try to sneak a peek at the girls in the bathroom, because who has time to wait to get lucky?! You're a horny teenage boy with your whole high school life ahead of you, so naturally, you decide to check out the bathroom!

Unfortunately for Kiyoshi, when the phone they were using to spy with falls into the bathroom, he has to go and retrieve it. It's only right, seeing as it's his phone. As Kiyoshi grabs the phone and gets ready to make his way out of the empty locker room, he is apprehended. Unfortunately, it's his crush Chiyo-chan. Fortunately, she's insanely near-sighted, and mistaking him for her friend, drags him into the showers.

There Kiyoshi finds himself in the promise land (not for the last time either). All around him are girls in their birthday suits. Kiyoshi unexpectedly finds himself in the land of nearly every young man's dreams, and for the first, but not last time, makes himself a man among boys.

The big draw of Prison School is the unnecessary amounts and types of punishment that the boys receive at the hands of Meiko and Hana. Hana, with her leggings under her skirt not even providing the hints of an upskirt and one of the best karate champions in the interschool championships, shows no mercy when doling out her punishments. As such, the boys are able to derive no sort of pleasure from her punishments. Naturally, she's the perfect choice to punish the prisoners when they get out of line. Due to a few incidents with Kiyoshi (more on that later), she's rarely available, leaving the Vice President, with her exceedingly large bust, lace underwear, and unorthodox punishments to whip the boys into shape.

Due to her appearance, the boys are all able to find pleasure from her punishments, whether it be being forced to lick her boots, whipped or piled drived. Her most unusual punishment, however, involves her sitting on her victim's face. Literally. The first instance in which she uses this technique is in combination with a forceful whipping of Kiyoshi. Later, she uses the same tactic as a form of interrogation on the Underground Student Council Captain of the Guards, Anzu.

It's embarrassing enough to be caught with your pants down, but Hana's determination to get even with Kiyoshi often proves to make things worse for her than if she'd just let bygones be bygones; it was an accident after all. It being an accident, however, doesn't mean anything goes!

Kiyoshi saw Hana relieving herself and so that's all she asks of him: empty his bladder in front of her. Fair and square. Grudge erased. It's not easy to go on command, so Hana helps him out with copious amounts of her signature tea. When Kiyoshi's bladder is finally full, and he finds himself doing the pee dance, Hana escorts him to the bathroom where they can finally be done with their grudge.

Of course, Kiyoshi's not so eager for an audience and makes a quick dash for the bathroom with Hana in hot pursuit. Unable to escape her, they find themselves cramped in a bathroom stall. As if being in such a small intimate space wasn't enough, Kiyoshi finds himself pressed against the wall with Hana offering a helping hand.

Kiyoshi's squirming causes Hana to slip and well... she get's what she wanted and then some. The visual cut at the end is absolutely perfect and makes the scene even more ridiculous. When Meiko responds to Hana's shrieks, she finds her on the floor soaked, stating she had an accident.

Hana's inability to let go of Kiyoshi's transgression causes her to suffer even more traumatizing incidents with him.

Hana and Kiyoshi's final showdown happens on what is supposed to be the boys' last day at Hatchimitsu Academy. In their last break attempt at freedom, one of the boys must make their way to the Warden's Office to unlock the back door. When Hana is placed on duty instead of Meiko, Kiyoshi must take one for the team, and go to the Warden's office to receive Hana's punishment.

Hana's earlier threat to his "Eryngii" while brandishing a cooking knife was all the more concerning when he meets Hana in the office with a pair of scissors. Fortunately for Kiyoshi, the scissors victim was a plastic bottle to provide a vessel to receive his urine. Realizing he can gain the upper hand, Kiyoshi takes off his pants and underwear. After being surprised at Kiyoshi's shamelessness, she challenges Kiyoshi by removing her leggings and underwear.

After quite the erotic Mexican standoff, Kiyoshi presses the issue and steps forward until he has an extremely uncomfortable Hana where he wants her. Unable to bear the awkwardness she hits Kiyoshi, causing him to fall to his knees. With the perfect view and his mission completed Kiyoshi falls victim to his excitement and the effects of Hana's "Medusa."

In a last attempt to get her revenge, Hana climbs on Kiyoshi and tries to steal his first kiss. When Kiyoshi realizes that, with no tongue or passion, Hana too hasn't had her first kiss and is giving him a child's kiss. Gaining the final upper hand, Kiyoshi slips Hana a bit of tongue. The pure ecstasy of the kiss leaves Kioshi cradling the half naked and drained Hana in his lap.