Hantsu x Torasshu

....who are obsessed with sex, as many boys at that age are.

We've got in this manga the four great things that ordinary, everyday boys would like in a story: a sport to try to master, an intense competition with another (irritating) boy to try to win, a cute girl whom the weak main character is hopelessly attracted to, and finally lots of ecchi. I love this story as a throwback to myself at that age—with a way more exciting setting and cuter girls than were around when I was young.

I'm puzzled by guys here who profess not to like ecchi. Oh, I can see not liking it when it's clumsily done or the girls are poorly drawn, but the main girl here is super-sexy, and innocent-seeming at the same time, and beautifully drawn. My tentative guess is this ecchi-hatred is the Standard Thing to Say in manga reviews these days—perhaps driven by the social justice warrior atmosphere of that News Network about Anime that we all know so well.

Anyway, other boys not so influenced are likely to love this.

••••
PS: After a whole lot of hi-jinx, a nice romance develops.

I love this manga and all the ecchi-ness that comes with it, its like Frogman manga but better in every single way.

I approve this manga and give it a 10/10 but its worth noting im a HUGE perv

Trash.
I put my prejudice against ecchi manga aside when a friends suggested I read it because it was pretty funny. Like another person posted, it's got the generic perverted, boring MC who joins a club for "perverted" reasons, but ends up wanting to help the team when he falls in love with the heroine. There are some funny parts, but all the fan service annoys me. I just don't find cartoon girls with warped faces attractive (giant eyes like a baby, unrealistic breasts, etc.). It seems to have potential, but my prejudice keeps me from enjoying it. Not to mention the notion of having a co-ed water polo club is ridiculous. There's so much underwater grabbing that if a man were to do that to a woman he would likely go to jail for sexual assault. I digress.
If you're into ecchi with some comedy, then I suppose it would be a decent read. Since I dislike ecchi, I got to the 7th chapter and dropped it. The events are very generic, but the formula work for those who enjoy this type of manga. It's one of those where you can foresee how the story will go. The dick grabbing is accurate, but I can't see a young girl doing that even if competing against a man. I find it funny that "dick" is listed under the categories, though.

tl;dr Generic. Just another ecchi manga where the MC can get close to a girl through some activity with ulterior motives. Character growth with too much fan service will ensue. Too boring and predictable. I've read worse, though. The scanlator also needs a real proof reader.

This has common themes: Perverted main character, love interest, realization that he wants to grow within the sport. It's funny, but has a lot of fan service. The art is great, the expressions are hilarious, and with the introduction of a rival the story is on full pace. I can't wait to see what happens.