Natsumushi The Animation is unfortunately one of the not so good Hentais out there due to the fact that there is hardly any Fu**ing in it, like goddamn man, 3 scenes only where pee pee enters the womenhood in 2 episodes?! holy shit man might as well just masturbate to Cars 2.
The settings are all in a train and a public toilet , so there is really not that much to work with, you will get a pervy molester and a scared girl or an over the top prostitute that does not care about the public moral codes and thats it. The Female main characters design is good but the male mc is not good at all , also when he speaks, he uses the yankee accent all the time and he is not enjoyable at all, and it gets quite annoying with time , i really think this hentai could have been better with just a couple of scenes being not on the train. The animation was on the average side too . The OST was not really that good but the ending theme was actually pretty fire.