------------------------------------------------------------------------------------------------------------------ Chinko Mitarai is a 17-year-old with a bizarre condition where his sexual libido is insanely high, thus if he doesn’t masturbate he has an erection at all times, hence his name is pretty much a pun; naturally with a physiology like that Mitarai is treated like a creep that no one likes, still one person, this one girl Morikawa (also 17) treated him with a single act of kindness once, even if she is a little offput by him too, by lending Mitarai an eraser once, Mitarai has fantasized about Morikawa since, but he knows they will never even be friends, much less anything beyond that…
That is until a random day when Mitarai was off daydreaming about Morikawa on his way to school, and the girl herself bumps on him as she rushed back home to get some stuff she forgot since she left early in a hurry; Mitarai can’t believe his goddess’ body is on top of him, his monkey brain foregoes all reason since he is so horny and starts touching her; Morikawa can’t believe some pervert is fondling her, gosh she hopes the creep doesn’t realize she is little wet from masturbating once she woke up, wait, is that Mitarai?
Mitarai got his fix of fondling Morikawa so his brain starts working again, he realizes she could scream and call the cops, maybe he should just molest her all the way and face punishment after? No, Mitarai thinks he can’t go that far so he immediately genuflects and begs for forgiveness, what a bad boy Mitarai is, Morikawa in her own thoughts is revealed to be a bit of horny girl herself, she doesn’t like being molested by a random by random person, but that’s Mitarai, someone she knows, and he made her cum, oh my, Morikawa is actually thinking this bad thing is not so bad?
Upon seeing Mitarai prostrate like that Morikawa stops fussing over her clashing thoughts, she is still horny, she tries to put up a front in which she lays down on Mitarai he did a terrible thing but she awkwardly tells him to take responsibility then if he doesn’t want her to report him to the authorities, Morikawa wants more of that sexual high! Mitarai, completely surprised, just stutters he lives nearby they could go there and continue if Morikawa wants to, she accepts. Once inside these two hormone addled teens let their desires take a hold of them, Morikawa tries to act more domineering first, as if to pay back on Mitarai molesting her earlier, but Mitarai really has his fantasies of making Morikawa submit to him, thus they give their virginity to each other.
Plenty of hot sex unfolds with Mitarai trying to make Morikawa admit she is a sub, but she tries to deny it, he keeps pushing either way, they do it so much they miss school entirely so Morikawa just asks Mitarai to let her stay at his house for the day; the day after Morikawa leaves Mitarai’s home, telling him to just forget this ever happened, she got carried away and told him she loved this… but both of them came to realize in their private thoughts that they don’t want it to end.
Since then Morikawa has been provoking Mitarai by flashing her panties when nobody is looking to get his attention, even dressing lewder ones to get his brain to shut down, Morikawa wants to be taken again, indeed, she loved doing with Mitarai and can't lie to herself about it, THE END. ------------------------------------------------------------------------------------------------------------------
Great art for a debut work, at any case the “story” is very simple and full of comedic hentai leaps of logic, basic to the point Shinoda admits being more about expressing the artwork than anything else, thus a silly self-aware ecchi scenario where a girl and boy bump into each other develops into them having sex.