In present day Japan, the life of a school girl is never dull. The easily-bored Konata never finds time to study because of her otaku habits, which frustrates hard-working Kagami to no end. On the other hand, laid-back Tsukasa always manages to go with the flow, while Miyuki is concerned with keeping her status as resident know-it-all. Join these four girls as they muse and meander their way through everyday events such as eating chocolate cones, doing homework, gaming, and trips to the beach galore.
Non Non Biyori is like Lucky Star as directed by Miyazaki. Both are about the intimate, quotidian interests and activities of schoolgirls and their interactions across grade levels. Both of them lack the intrusions of high comedy, sight gags, and flights of fantasy as notable in Azumanga Daioh and Nichijou. Lucky Star is significantly nuttier than Non Non Biyori, which is as much an ode to the quiet country life as it is a slice-of-life drama.
Kyousuke Kosaka is a normal teenager with average grades and an average home life, but when he finds out that his overachieving younger sister Kirino has been hiding her vast anime and eroge collection from their unassuming parents, his world turns inside out! Now, having promised to help his formerly distant sibling navigate her two distinct lives, Kyousuke finds himself drawn into Kirino's world of magical girl anime and "little sister" fetish games while covering for his sibling to her parents and friends, not to mention trying to provide what guidance he can.
Both of these series star a very otaku girl in a comedy and slice of life-esque series. If you enjoyed all the anime, gaming, and other references in one series, you'll probably like the other. The biggest difference in the series is that Lucky star is almost completely episodic and random while Ore no Imouto has a plot it follows and a lot more character development.
Tragedy struck Kotaro Higuchi as a child in the form of his mother's death in a car accident. But fate has a funny way of doing things, and years after the fact an angel-in-training named Misha decides to pay him a visit. Joined by his fellow elementary school students, and later by the nicest demon you'll ever meet, Kotaro and Misha will embark on a journey of laughs and love.
If you liked Lucky Star, then I would highly recommend Pita Ten. Both have a relaxed plot, and both have adorable art with adorable characters. Plus a little bit of comedy is put into Pita Ten, just like in Lucky Star.
Both series follow the antics of a group of Highschool girls. Both have a random sense of humour and neither of them have an actual plot. It should be noted that Plastic Nee-san's humour is a bit more crude than Lucky Star's humour. Also, Plastic Nee-san has episodes that are 2 minutes long while Lucky Star's episodes are the normal TV length. Still, if you like one, you will probably like the other.
One day, the typical Sunao Moriyama found something not-so-typical in his refrigerator: a small creature between the potatoes and mayonnaise that he dubs Potemayo! Sunao decides to take care of Potemayo and takes her with him everywhere he goes, and as a result Potemayo quickly becomes popular with Sunao's classmates. However, the tranquility of the new friendship is broken with the arrival of another creature from Sunao's fridge – this time a scythe-wielding laser-shooting horned creature he dubs Guchuko. Now, every day brings new adventures and surprises with Potemayo and Guchuko around!
A certain lack of content is not necessarily a problem for an anime -- plenty of stories that have no real depth or significance are capable of providing great entertainment. This is the case with both Potemayo and Lucky Star. They are clearly both bagatelles, filled with passages of aimless chit-chat and simplistic humour. But they nevertheless manage to draw forth one involuntary smile after another.
If you like the ultimately pointless but nevertheless very funny passages in either of these anime, you will surely like the other as well.