Koe de Oshigoto (2010)

Socially awkward Aharen-san has personal boundary issues, either getting too close or too far from her classmates. When fellow student Raido picks up an eraser she drops, Aharen-san decides they’re now best friends. Whether studying, playing the arcade, or just eating lunch—she’s along for the ride. What follows is an impromptu bonding that shows affection can blossom in the unlikeliest of places!

There was a time when the Hachimitsu Private Academy was a revered and elite all-girls' boarding school on the outskirts of Tokyo but a recent policy revision is allowing boys into the student body. On his first day, Kiyoshi Fujino discovers that he's one of only five boys enrolled at the school. Completely overwhelmed by the thousands of girls on campus, the few boys find that their situation is less than ideal.

Ichiro Sato is about as average as a student can get... except for his above-average ability to land himself in totally awkward, intensely risqué situations with his no-nonsense teacher, Kana Kojima! Ichiro has his hands full dealing with these steamy shenanigans and unexpected encounters in the most unlikely places. At least it can’t get any worse, right?

The story begins with Izumi Hayato running to be student body president. But when a beautiful girl swings in promising the liberalization of love while flinging condoms into the audience, he ends up losing to her and becoming the vice president. At the student council meeting, the newly-elected president invites herself over to Izumi's house, where she promptly announces she is to become Izumi's wife thanks to an agreement that their parents had made, a drunken promise decades ago that their children would one day become husband and wife. Naturally Hayato is against this, but Ui has the complete opposite reaction, and even wants to live with him! Will the upset Hayato and the overenthusiastic Ui be able to manage their school and marital life while keeping it a secret from the other students? Or will the two never come to understand each other's feelings?

Kazushi Sudou is a university student who is visited by his two childhood friends, the sisters Ayane and Kotone Shirakawa. When Ayane discovers that Kazushi not only forgot to buy her pudding but is also using her special lotion in the bath, she decides to take revenge and join Kazushi in his bath along with Kotone. Will the perverted Kazushi be able to remain indifferent to them both?

Shinichi Sakurai’s one wish is for a little peace and quiet. But Hana Uzaki — his boisterous, well-endowed underclassman — has other plans. All she wants is to hang out and poke fun at him. With the help of her chipper charm and peppy persistence, this might just be the start of a beautiful relationship!

Ao Horie's father, a popular erotic fiction author, chose Ao's name because A stands for “apple” and O stands for “orgy”! Desperate to escape her father's legacy and get into a prestigious university, Ao devotes herself to studying instead of pursuing romance. She has no time for boys, but there's just one problem: Kijima, her handsome and popular classmate, just confessed his love to her! And to make matters worse, she can't stop thinking dirty thoughts about him! Looks like escaping her father's influence will be harder than she thought...

The anime follows a salaryman who has a chance meeting with a girl named Ai on the train. They begin to meet every Monday on the train, with the man serving as her bodyguard on the crowded commute while they chat.

Sixteen years after the "Law for Public Order and Morals in Healthy Child-Raising" banned coarse language in the country, Tanukichi Okuma enrolls in the country's leading elite public morals school and is soon invited into the Anti-Societal Organization (SOX) by its founder, Ayame Kajou. As a member blackmailed into joining by Ayame, Tanukichi ends up taking part in obscene acts of terrorism against the talented student council president Anna (for whom Tanukichi has a crush on).

Miyako is a shy college student who is also an otaku. One day she happens to meet some angelic grade school kids! When Miyako sees her little sister's new friend Hana-chan, Miyako's heart won't stop racing! Miyako tries to get along with them but struggles... A sketch comedy all about trying to get along with the super cute girl is about to begin!