“Aspects of Behavioral Selection in Interpersonal Relationships” “Taijin Kankei ni okeru Kōdō Sentaku no Tokuchō” (対人関係における行動選択の特徴)

Two freshmen take an interest in Genshiken and join them for a night out on the town. Kasukabe, however, has no intention of making them feel welcome.

“On Connecting with Others through Subculture” “Sabukaruchā o Meguru Tasha to no Kankei-ron” (サブカルチャーをめぐる他者との関係論)

Kasukabe tries to make herself more appealing to Kohsaka by taking an interest in his hobbies by trying to learn how to play Puyo Pop Fever. Sasahara’s sister Keiko also makes an appearance and calls on her brother for help.

“Limits of Rejection and Receptiveness as Observed in Autonomous Behaviour” “Jiritsu Kōdō ni Miru Haiseki to Juyō no Kyōkai” (自律行動に見る排斥と受容の境界)

Due to Genshiken’s lack of “activities” as defined by the school, the club is threatened with closure; salvation comes from an unlikely source as Kasukabe intervenes personally.

“The Sublimating Effects of the Dissimulation Brought on Through Makeup and Costume on Mental Obstacles” “Funsō to Kasō no Ika ni yoru Shinri-teki Shōheki no Shōkasayō” (扮装と仮装の異化による心理的障壁の昇華作用)

Ohno is introduced as she joins Genshiken, while Genshiken takes part in a university club fair and Kasukabe’s ex-boyfriend pays her a visit.

“Problems and Merits of Local Culture Promotion” “Chiiki Bunka Shinkō no Mondaiten to sono Kōseki” (地域文化振興の問題点とその功績)

Genshiken goes on a club trip to Comiket, a large comic convention; Madarame seriously injures his hand, but pretends to be fine in the name of fandom until the pain becomes too great to bear.

“Comparative Classification of the Modern Youth through Consumption and Entertainment” “Shōhi to Yūkyō ni yoru Gendai Seishōnen no Hikaku Bunrui” (消費と遊興による現代青少年の比較分類)

Genshiken takes Sasahara to Akihabara for dōjinshi shopping while Kohsaka and Kasukabe go to Harajuku for clothes; Kasukabe discovers Kohsaka’s hentai collection and gets an introduction on the subject from the others.

“Study of the Modern Visually Oriented Culture” “Gendai ni okeru Shikaku o Chūshin to shita Bunka no Kenkyū” (現代における視覚を中心とした文化の研究)

An introduction episode explaining how Kohsaka, Kasukabe and Sasahara got involved with Genshiken; after some uncertainty, Sasahara decides to fully participate in the club.

“Motoko’s Choice, Love or the Sword: Don’t Cry” “Motoko no Sentaku, Koi ka Ken… Naku na” (素子のセンタク、恋か剣… 泣くな)

Out of nowhere, Motoko’s sister appears and is ready to pass on the dojo. However, Motoko is still not quite as strong as her sister and when her sister finds out about this, she gives Motoko an ultimatum: Motoko must beat her sister or marry Keitaro!

“Celebrate! Are the Blooming Flowers Tokyo U? Love? Everybody” “Shuku! Sakura saku no wa Tōdai? Koi? Minna” (祝!サクラサクのは東大?恋? みんな)

Everyone has to leave Hinata House for a day because the inn is undergoing repairs and renovations. It also becomes apparent that Keitaro won’t be coming back to Hinata Inn and Naru has completely given up on Keitaro. Who will Keitaro decide to be his soulmate, Naru or Mutsumi?

“Naru Narusegawa - Her Wavering Heart and Keitaro: Crushed” “Narusegawa Naru, Yureru onnagokoro to Keitarō Konagona” (成瀬川なる、揺れる女心と景太郎 こなごな)

Naru now wonders what she should do with her newfound knowledge and it seems like Keitaro is going to be returning home since his grandma has returned to reclaim the inn. To add more to the mess, it doesn’t look like Keitaro’s studies are going to be enough to help him into Tokyo University.

“Little Sister Mei’s Devious Plan: It Can’t Be!” “Imōto Mei no takurami, Misshitsu Daisakusen Sonna” (妹メイのたくらみ、密室大作戦 そんな)

Mei is Naru’s stepsister and hopes to take Naru back home. To accomplish this, she decides she has to hook Keitaro up with Mutsumi and it is in this episode that Naru finds out something shocking.

“Jealous Outburst? Two Lovebirds on a Boat: Tremble” “Shitto Bakuhatsu!? Bōto ueno oatsui futari Wanawana” (嫉妬爆発!?ボート上のお熱い二人 わなわな)

Naru and Keitaro decide to go out to celebrate the latest grades and while both are wondering whether it’s a date or not, a mysterious little girl appears.

“A Sepia-colored Promise with a Sleeping Girl: A Trick?” “Nemuri no shōjo to Sepia iro no yakusoku Karakuri na” (眠りの少女とセピア色の約束 カラクリな)

Keitaro discovers a doll that can move on its own. Everyone is amazed by it but Keitaro and Mutsumi seem to be able to hear it talk also. Keitaro finds out from the doll that his great grandfather promised to fix its legs but never did and being the good guy he is, Keitaro decides to fulfill his ancestor’s promise… with the help of the girls, of course!

“Marry into Money? A Prince from Across the Sea: Warm” “Tama no koshi? Umi no mukou no Kōtaishi Atataka na” (玉の輿?海のむこうの皇太子 暖かな)

A man who happens to look exactly like Keitaro when he wears glasses appears and is later found out to be from Kaolla’s home country. He is here to get married to Kaolla but she decides she isn’t quite ready yet, but tradition says she must.

“Girls Dressed in Yukata for the Summer Festival: Let’s!” “Sorezore no yukata no kimi to Natsumatsuri Hona” (それぞれの浴衣のきみと夏祭り ほな)

Just before the residents go back from their summer break, they attend the Summer festival in the local town, dressed in traditional outfits. Kitsune, however, seems determined to force Naru and Seta away from one another for their own good. Could she have an alternative motive?

“Mesmerized by Naru on the Haunted Island! Something’s Fishy!” “Umi… Naru ni Doki!! Yōkai ni Kura Ayashii na” (海…なるにドキッ!妖怪にクラッ 妖しいな)

Shirai and Haitani offer to help Keitaro earn Naru’s heart, with a scary boat ride that drives her into his arms. Their plans are dashed, however, when a real ghost seizes Naru, and Motoko has to fight on her behalf.

“Monkey Performance at the Seaside Teahouse Hinata: A Kiss?” “Umi no Ie, Hamachaya Hinata no Saru Shibai Chū ka na” (海の家·浜茶家ひなたのサル芝居 チュウかな)

Haruka is opening a tea house by the beach over the summer, and the residents have to put on a play to draw in customers. But when Su destroys the main building, Seta appears with an alternate venue. The price for this venue, however, is a change in the castings.

“I Love You!? Romantic Confession Inside a Cave: Tall Tale” “Suki! Dōkutsu no naka no Rabu Rabu Sengen Horaana” (好き!洞くつの中のラブラブ宣言 ほらあな)

Keitaro is forced to look after Seta’s adoptive daughter Sarah while the archaeologist is on a dig. A series of events leads them to the darker part of Hinata House, where everyone make a startling discovery.

“Naru’s Crush Is Now a Tokyo U Professor: Turning Into Love?” “Saikai? Naru akogare no hito wa ima Tōdai Kōshi Rabu he na” (再会?なる憧れの人は今東大講師 ラブへな)

There is a financial crisis at Hinata House: if the residents don’t come up with 67,000 yen in three days, the utility companies will cut off all services. Keitaro ends up working for one of Tokyo U’s scientists, not to mention his hyperactive daughter, but doesn’t know about the old connection between this man and Naru.

“The First Kiss Tastes Like Lemon? Marshmallow? Grown-up” “Hatsu kisu no aji wa remon? Mashumaro? Otona” (初キスの味はレモン?マシュマロ? おとな)

After spying on one of Keitaro’s failed attempts to kiss Naru, Shinobu ends up worrying who her first kiss will be with. Her mind says Keitaro, but with Su added into the equation, who knows who it will be?