Aoki Daisuke is a fresh, new elementary school teacher, eager to help shape and guide his young students. But he got more than he bargained for with Kokonoe Rin! This saucy third grader has knowledge beyond her years, and a deep-seated mistrust and loathing of adults. She will go to any lengths to protect her friends Kuro and Mimi, including harassment, extortion, threats, and sexual blackmail. And yet, with her friends, she is kind, caring, and self-sacrificing. Can Daisuke gain Rin's trust and save her from her dark side without falling victim to it himself?
If you liked watching extremely young girls seemingly being interested in their ''teacher'' than look no further. Both anime possess ecchi scenes however kodomo no jikan pulls a little further into lolicon material while Ro kyu bu plays it a little safer and has a running plot beside it instead of making it the main plot.
Ro-Kyu-Bu! is not so much about sports as, like Kodomo no Jikan, about budding teacher-pupil relationships, aspired mainly (but not exclusively) by the little girls. KnJ takes the drama and ecchi much farther, but RKB! has plenty of ecchi and a great feel-good element. In both animes you will hope the girls win the the hearts of their (much older) dream guy.
In the future, basketball is played by giant robots called Bigfoots and the wealthy elite live on the moon. Dan JD is a cocky young boy who lives on the planet Earthdash and makes a meager living working as a delivery service. He dreams of someday bringing his disabled sister to the moon to give her the medical treatment she needs. Dan also despises the boring playing style used by official Bigfoot Basketball, so the first chance he gets he crashes a game to show the world how it's really done - destroying the arena and being thrown in jail in the process! However, by the time he's released, Dan's story is legendary, spawning countless imitators who smash up the city in their Bigfoot duels. All Dan's got to do is fend off his rivals, try desperately to keep his business afloat, and aim for the moon!
It's the first day of high school, and plenty of school clubs are doing their best to recruit new members. However, for ditzy Yui, none of them seem to fit the bill. However, when she accidentally signs up to join the light music club, Yui begins a hilarious adventure to become a world class guitarist! There's just one problem: she's never played the guitar before in her life! Joined by bassist Mio, drummer Ritsu and keyboardist Tsugumi, Yui and the gang will juggle their studies with buying instruments, learning how to read music and even performing in the school festival, all in the hopes of someday becoming a successful band!
Lotte, the princess of Ygvarland, hates men - a fact that ordinarily wouldn't be a problem given she's just a child. There's just one issue: the girl is a succubus that must suck the life seed from the male species or die! Now approaching adulthood, Lotte must learn to tolerate the opposite sex, but her royal highness won't have any of it. That is, until Judith, the girl's lady-in-waiting, brings Lotte a human boy to the demon world. This unfortunate young man, Naoya, must now open the princess's heart to his gender, but as caring and considerate as he may be, he'll certainly have his work cut out for him!
These two series are both big loli titles. In both of the series, a guy try to help a girl to achieve her goal by helping her getting used to men (In Lotte no Omocha!) and by training her basketball team (In Ro-Kyu-Bu!). By doing so, they also both face their past and change themselves for the better. These two series are definitely a must watch for every loli fans out there.
Winning a game of Mahjong is hard; getting the same score every time is practically impossible. So imagine the surprise of the school Mahjong club when Saki Miyanaga walks in and does just that. Despite her dislike for the game, her talent is obvious and it's up to the club members - the top-heavy Nodoka, the energetic Yuuki, the cunning Mako and the permanently in control club president Hisa - to persuade her to join the club and help them reach the Nationals. But even then, will their combined skills be enough to overturn some of the toughest high school players the country has to offer?
First of all, these anime are all about showing how their sports are serious business: be elementary schoolers' basketball or high-schoolers' mahjong, the characters will do everything to get to the top. You also have the typical but still nice scenes about friendships, mutual trust and overcoming one own problem etc. And they both have a really considerable amount of cutesy comedy and slightly ambiguous moments.
Only true difference is that Ro-Kyu-Bu is filled with lolis, so be warned if you're not into it, while Saki has absurd "transformations" during matches; anyway, I still think this makes for a good recommendation.