Duel

To prevent Luna’s fans and Sun’s followers from murdering each other, Nagasumi offers himself as the grand prize in an all-out singing competition between the two girls!

“Image” “Imēji” (イメージ)

The girls return to school after summer vacation and find that Konata is under the influence of Marimite. Tsukasa and Miyuki have a conversation about the dentist and return trips to said dentist. Konata refers to Minoru as “Sebastion” because he was acting like a butler by collecting homework for Ms. Kuroi. Konata also finds out from Tsukasa that Kagami takes liberal arts just to be in the same class with everyone else and Konata makes fun of her for it. Yui comes to visit and Konata needs help with her summer homework but she would probably have to redo it over again if she gets help from Yui. Miyuki attends school for a day without her glasses and Tsukasa gets a new cell phone, but its life is tragically cut short after a trip in the washing machine. Konata’s dad is also trying to call her, but she has left her phone in her room. They get on the topic of what side the head would be on a cornet again and how Kagami was not pleased with the results of the diet she went on to make up for the weight she gained in the summer. Konata and the Hiiragi twins are on a bus and Kagami talks about how there has been frequent junk mail lately and Konata explains that she uses an address that is hard to guess. She uses an address called “iluvgirlswithglasses” and this creates an awkward moment for everyone on the bus.

V (The Visitors)

When Nagasumi discovers the secret mermaid identity of a famous pop star named Luna, the little diva demands he become her personal slave! Her plans for childhood rival Sun are even more drastic.

“Fixtures of Summer” “Natsu no Teiban” (夏の定番)

The group, plus Yui and Nanako, go to the beach for some summer fun. After Yui races down the road (in a parody of Initial D), and Nanako gets really lost, they finally make it and spend a night in a Japanese inn. After a day at the beach, and Nanako becoming too drunk to drive, they head back to the inn for a shower and to spend another night. After arriving home, the twins have to clean their bedrooms, Konata discusses cleaning tactics with Kagami, and Miyuki is told she has to go see the dentist, or her mom is bringing the dentist to their home.

Faibles Femmes

Mawari thinks there’s something fishy about Sun, so she begins an investigation. When the clues lead to a dangerous situation, Sun might have to reveal her secret to keep her new friends safe!

“The Famous Shooter” “Meishashu” (名射手)

Summer vacation begins, and Konata, the Hiiragi twins and Miyuki go to a summer festival, dressed in yukata. Yui Narumi, Konata’s cousin, is introduced, currently on patrol at the festival. Konata and Nanako chat over an MMORPG, and later, Konata and the twins meet to do homework together. Back at her house, Konata finds a rare item drop on the game and celebrates it with her online friends.

School in the Crosshairs

Newly enrolled Sun makes quite a splash among her classmates on the first day of school, but Nagasumi is more concerned with some of the new teachers - Sun’s dad and his goons!

“A Question of Motivation” “Yaruki no Mondai” (やる気の問題)

Summer vacation is almost here, and Konata is still staying up late playing online video games, reading manga, and watching anime, instead of studying. It is revealed that her homeroom teacher, Nanako Kuroi, plays the same game as Konata. Kagami and Tsukasa’s birthday is around the corner, and Konata and Miyuki celebrate with them. Konata reveals to the sisters how she came to like manga and anime.

It`s Tough Being a Man

Sun and Nagasumi leave Maki behind and venture out to take in the sights and sounds of the city. When Nagasumi has to confront a couple of bullies, they may wish the tiny terror was still around!

“Various People” “Iroiro na Hitotachi” (いろいろな人たち)

The girls discuss various facts and myths about twins, and how, according to changes in classification, Kagami and Tsukasa might be identical, instead of fraternal. Then, Konata, Tsukasa and Miyuki compare notes on marriage. Later, when Konata, Tsukasa, and Kagami are hanging out together, they each pull their hair into a ponytail to see how it would look.

The Island Closest to Heaven

Nagasumi has to tell Sun that it’s time for him to return home. While he tries to find the right moment, Sun’s tiny bodyguard, Maki the Conch, looks for her own perfect moment - to assassinate Nagasumi!

“Efforts and Results” “Doryoku to Kekka” (努力と結果)

Throughout Golden Week, Kagami and Tsukasa have been playing together, however, Tsukasa does not know her sister has actually been waking up earlier and going to bed later, in order to study and finish homework. After the break, Konata pulls an all-nighter and manages to obtain an above-average score, despite doing no studying during the short vacation. To fund her otaku desires, Konata decides to get a part-time job, with the position greatly surprising her friends and it suits her perfectly.

The Lord of the Ring

Nagasumi escorts Sun to a festival so they can get better acquainted before their big day. They better skip the small talk - if Sun’s dad has his way, Nagasumi won’t live long enough to ask for a second date!

“The Girl who Dashes Off” “Tsuppashiru Onna” (つっぱしる女)

The four main characters are introduced, going about everyday life, as they attend their second year at Ryōō High School. The first discussion of chocolate cornet begins. One of Konata’s friends, Kagami Hiiragi, is sick, and her friends come over to see how she is doing.

The Yakuza Wife

After a pretty mermaid named Sun (who happens to be the daughter of a merman yakuza) saves him from drowning, Nagasumi has to make a choice: marry Sun or sleep with the fishes!

“Countermeasures for Issues that Arise during the Reorganization of a Group” “Soshiki no Saikōchiku-ji ni Hassei suru Kadai to Taisaku” (組織の再構築時に発生する課題と対策)

The club is depressed due to their punishment of community service. Sasahara becomes the new President and proposes that the society attend Comifes as a circle.

“On the Presence of Malicious Intent in Urban Crimes” “Toshi-gata Hanzai ni okeru Akui no Shozai-ron” (都市型犯罪における悪意の所在論)

Kasukabe decides the club room needs a cleanup, but an accident causes Genshiken to be banned from the university fair. As an apology, Kasukabe takes Ohno’s place in the fair’s cosplay contest.

“The Fetishism of Leisure Time Expenditures Considered by their Economic Result” “Keizai Kōka kara Kangaeru Yoka Shōhi no Fetishizumu” (経済効果から考える余暇消費のフェティシズム)

The club, along with Keiko, pays a visit to the beach, much to the dismay of some of the members; Keiko decides to compete for Kohsaka’s feelings and tries to become an otaku.

“Concerning the Existence and Non-Existence of Explanatory Duties Under Specially Confined Circumstances” “Tokushu Heisa Jōkyō-ka ni okeru Setsumei Gimu no Umu ni tsuite” (特殊閉鎖状況下における説明義務の有無について)

Madarame is stuck in the club room with Kasukabe and tries to strike up a conversation, running through different scenarios in his head which parody the visual novel format.

“Comparative Study in Production Models and Processes” “Ryōsan-gata Seizō Katei ni okeru Hikaku Kenkyū” (量産型製造過程における比較研究)

Ohno and Sasahara start a plamo project and get the whole club involved, while Kasukabe learns an important lesson.