この作品は『とある事情でしばらく離れ離れになっていたものの、ゆえあって再び一つ屋根の下で暮らすようになったふたりの兄妹が、特に波乱もない平和な日常をのんべんだらりと送っていく様子を、これといった起承転結もなくつづっていくだけの単調な物語』のはずだったが…、主人公・姫小路秋人が6年ぶりに再会した双子の妹・姫小路秋子は極度のブラコンになっており、兄に対して恋愛感情を抱いてしまっていた。 更に転校先の聖リリアナ学園では、生徒会長の二階堂嵐、生徒会副会長の那須原アナスタシア、秋人の友人で京都から追っかけてきた猿渡銀兵衛春臣と、一癖も二癖もあるメンバーも集まり、気付いたらみんな一つ屋根の下で暮らすことに…。 秋人の望んでいた『平凡な日々』はあらぬ方向に進んで行ってしまうことになるのであった。
お兄ちゃんだけど愛さえあれば関係ないよねっ (シーズン 1)

Brother Love (エピソード 1)
放送日: 2012-10-05
上映時間: 25 min
概要: Akiko moves into a school dormitory with her brother Akito, when he transfers to her school. Owing to her brother complex, Akiko has a crush on Akito. With both of them in student government, will Akiko be able to share him with the other council members?

Indecent (エピソード 2)
放送日: 2012-10-12
上映時間: 25 min
概要: Akito catches Akiko reading a trashy romance novel. Akito, having trouble settling in to in his class, is given firsthand lessons in the concept of "tsundere"from both Akiko and Anastasia. Akito and his longtime friend Ginbe get into an argument.

No Bra (エピソード 3)
放送日: 2012-10-19
上映時間: 25 min
概要: Akiko asks Akito for help changing her light. Akito has his hands full maintaining the dorm, from fixing the plumbing to repairing the doors. The girls have differing opinions over allowing Akito to take in the laundry. Akito helps Anastasia settle in.

Naked (エピソード 4)
放送日: 2012-10-26
上映時間: 25 min
概要: Akito brings home a special dessert, just for Ginbe to enjoy. Akito continues to fix up Anastasia's room, and the two of them discuss her hobby of collecting stuffed animals. Arashi has the girls take a bath together, to help them bond together better.

Sexual desires (エピソード 5)
放送日: 2012-11-02
上映時間: 25 min
概要: In a student government meeting, the council members discuss what they are going to call Akito. Kaoruko proposes that Akito write a short story to be published in a women's magazine. She grows concerned for him when she learns his sibling is a sister.

Mayonnaise & chicken (エピソード 6)
放送日: 2012-11-09
上映時間: 25 min
概要: Kaoruko reads the latest installment of Akito's love story. She decides to stop by the dorm, where she meets the others, and asks them whether they think Akito has a sister complex. The council decides to separate Akito and Akiko into separate rooms.

Chippai (エピソード 7)
放送日: 2012-11-16
上映時間: 25 min
概要: Akiko is upset over not being consulted before Arisa, who claims to be Akito's fiancée, was hired as dorm manager. Later that day, Arashi proposes that Akiko and Arisa compete in a contest, to see which one of them is the better little sister to Akito.

Colorful (エピソード 8)
放送日: 2012-11-23
上映時間: 25 min
概要: The girls all go to find new swimsuits even though summer is still in the distance. They try frilly ones, sexy ones, and cute ones. Then, Arashi proposes a contest to show of their new goods and Akito must decide which one impresses him the most.

Nii-Nii (エピソード 9)
放送日: 2012-11-30
上映時間: 25 min
概要: Akito follows Gin to the back of the school building to find out why she is acting so suspiciously. When Akito suddenly falls sick, everyone fights over who will nurse him back to health. They decide to take turns treating him how they see fit.

“Gindama” (エピソード 10)
放送日: 2012-12-07
上映時間: 25 min
概要: During her turn nursing, Ginbe reminisces about Akito's transfer to her school and how they first met. After Akito recovers he has to choose the winner of the contest he had no idea about. What is the prize and what will the winner do with such a chance?!

Ephemeral (エピソード 11)
放送日: 2012-12-14
上映時間: 25 min
概要: Unable to find her panties, Anastasia decides to go commando for the rest of the day. Arisa gets frightened by something she sees outside of the dorm and the group decides to investigate the source. All the while, Kaoruko sleeps in a feverish slumber.

It's love (エピソード 12)
放送日: 2012-12-21
上映時間: 25 min
概要: Everyone gets separated and Akiko is left alone with Nasuhara. While contemplating her panty dilemma, Nasuhara reminisces about her first meeting with Akiko. What will happen to Akito and his crew of crazy girls that sleep under the same roof?

シーズン

エピソード 12

エピソード 6