Hotaru gets along with the Koshigaya family’s next door neighbour, Konomi Fujimiya, whilst Komari laments that the two seem more grown up than she is. Later, Komari joins Hotaru and Renge in doing some sketching, where she ends up becoming a model for them. Afterwards, Konomi helps Komari and Natsumi make dried persimmons.

Since the school doesn’t hold cultural festivals, Natsumi suggests they hold their own and invite the alumni, including Kaede, Konomi and Hikage. At the festival, the girls run a café, hold an art exhibit and put on a play. However, they’re play ends up being overwhelming and they end up slacking on food orders. They do eventually work together to prepare some food and have fun. Afterwards, Komari and Konomi help clean Natsumi’s room, where they find a lot of old toys.

An OVA bundled with the seventh manga volume.

Suguru wins some tickets to Okinawa in a shopping mall lottery, so the whole gang plan to go on a trip there. To prepare for the trip, the girls practice being on an airplane and go to a convenience store to buy some travel things. Meanwhile, Renge is very thoughtful about how the trip may change her view on the world, spending the evening before the trip giving her farewells to the countryside. The next day, everyone sets off on their flight to Okinawa.

The second semester has begun, and the Asahigaoka students are making wood crafts in class. Renge and Natsumi pair up to make something together, but can’t come up with any ideas. Just when Natsumi starts to panic, Renge demonstrates her unique sensibilities again. Then at lunchtime, the smell of curry fills the air, and the Koshigaya sisters recall a tragedy that befell the school long ago…

Natsumi’s mother asks Natsumi to go catch something to live in the family’s pond, and Natsumi agrees when she’s told she’ll be paid. She lends Natsumi a watch and tells her to be home by curfew, and all the kids go out for a day of fishing. Later, Konomi sees that Natsumi still doesn’t seem like a girl at all even now that she’s in middle school, and brings some of her old outfits over for her to try on…

Renge goes to visit Natsumi, but she and her family aren’t home. She’s about to give up and leave when a hand starts talking to her from the other side of the fence! She thinks it’s a monster, and is relieved to learn that it’s the next door neighbor Konomi. But Konomi then tells her that she is, in fact, a monster… Later, the Koshigaya sisters tell Renge they were in first grade when they took off their training wheels, so Renge starts to practice riding her bike without the training wheels.

One morning during winter break, Ichijo Hotaru and Koshigaya Komari are on a walk when they run into Fujimiya Konomi on her way back from practice. Komari takes great interest in Konomi’s cellphone.

During spring break, Renge and Hotaru head to school to feed the rabbits and end up finding Renge’s Legendary Sword.

It’s another idyllic day in the countryside, but things are anything but ordinary when Renge meets Akane, a flutist who has trouble playing in front of other people.

Sometimes it’s hard to believe Hotaru is still in elementary school! But even Hotaru needs to act like a kid now and then… or at least that’s what Konomi thinks.

After breaking a bonsai planter with a Surefire Kill Shot, Natsumi and Hikage practice the art of apology… sort of. Turns out neither one of them is very good at it.

Beep boop! Koma-plushie is live, boop beep! But Hotaru isn’t a master of robotics just yet, and her pet project still has a long way to go before it’s ready to fly.

Akane and Konomi go shopping, and they take a detour to play some festival games! But beginner’s luck will only get you so far, and there’s something weighing on Akane’s mind…

Komari receives an unexpected visitor. Now she’s making a weird face and can’t seem to knit properly. But don’t worry — Natsumi will cover for her. Sort of.

New Year’s is here, and that means New Year’s money! What will everyone spend their cash on? And is there a way to get even more? Or perhaps that’s not a good idea…

Once the kids are asleep, the adults get to partying! …wait, what’s that noise? Ren is awake!? Uh oh…

Following a graduation ceremony, Renge and friends spend the day playing in the great outdoors. It’s days like these you wish would never end…

An OVA bundled with the special edition of Atto's spin-off manga Non Non Biyori Remember.