Kiss x Sis

Keita is studying hard for a high school entrance test, but his two beautiful elder twin stepsisters are a constant distraction. Though they mean well, Ako and Riko are also extremely sexually assertive and interested in Keita. At first, he fends them off, but little by little, with each kiss, Keita becomes close to both twins until a forbidden love triangle develops. Will taboo-breaking love bloom between two of them... or will Keita at least get into high school?! (Source: Discotek Media)

Oreimo

Kousaka Kyousuke, a normal 17-year-old high school student living in Chiba, has not gotten along with his younger sister Kirino in years. For longer than he can remember, Kirino has ignored his comings and goings and looked at him with spurning eyes. It seemed as if the relationship between Kyousuke and his sister, now fourteen, would continue this way forever. One day however, Kyousuke finds a DVD case of a magical girl anime which had fallen in his house's entrance way. (Source: Crunchyroll)

Aki-Sora

Aki-Sora revolves around Aki Aoi and Sora Aoi, a pair of close siblings who have shared an intimate bond since childhood. During their coming of age, they each come to realize the true depth of the love they feel for each other and consummate that love in secret. They keep their younger sister, Nami, Sora’s twin in the dark about their new relationship. Nami, clueless of what is happening in her household aims to set her brother up with her best friend, Kana Sumiya. Despite these relationships Nami seems to have feelings for someone near to her too but keeps them secret.

kiss×sis (TV)

Keita has two older step-sisters, Ako and Riko, but since they aren't related by blood, they love him in a lustful way. After a mishap at school, Ako and Riko finally confess their love to him. Keita dislikes the thought of seeing them other then brother and sister, but as he tries to enter the same school as his sisters, he slowly becomes attracted to them. (Source: Anime News Network) Note: The first episode was aired as an online preview on Bandai Channel between 25th and 26th of March 2010. The regular broadcast started on April 5. </i>

Boku wa Imouto ni Koi wo Suru

Yori and his twin sister Iku used to be very close as children but lately Yori has grown colder toward Iku and is always eager to stay away from her. Iku was confused by Yori's attitude. Actually Yori is in love with Iku and that forbidden love is causing Yori sleepless nights since Yori and Iku are sharing the same room with bunk beds. Yori tried to ease his intense desire for Iku by bedding Iku's best friend. He had even applied to attend a boarding school in another city to take him far away from Iku. Yori lost his resolve to stay quiet about his feelings when Iku started to talk about having a boyfriend and going on dates. Now Yori want to have his little sister and he confessed. Iku loves her big brother and wanted them to stay together, so Iku is willing to anything to keep them together. But Yori wanted to have Iku as a lover, not as a sister loyal to her twin.

Amagami SS

Two years ago, Junichi Tachibana had his heart broken by a girl who stood him up on a date on Christmas Eve. Now a second-year student in high school, Junichi is wary of love because of his past and dislikes celebrating Christmas. However this Christmas, his encounter with one of six girls from his school: Haruka Morishima, Kaoru Tanamachi, Sae Nakata, Ai Nanasaki, Rihoko Sakurai, or Tsukasa Ayatsuji will finally open up his heart to love again.

School Days (TV)

Makoto Ito is a young Japanese high school student beginning his second term at the fictional Sakakino Academy. During his daily train rides to and from school, he becomes infatuated with fellow student Kotonoha Katsura; a girl that also commutes. When a new classmate acquaintance of his, Sekai Saionji, discovers his secret crush on Kotonoha, she helps introduce both of them to each other and over time they grow closer and agree to date. However in spite of her proud and triumphant matchmaking efforts, Sekai inadvertently becomes jealous of the new couple, having also developed feelings toward Makoto. The following afternoon on her way home at the nearby train station in front of the school, Sekai finds Makoto waiting for Kotonoha to rendezvous for a date. He sits with her and reiterates his appreciation for her help, and feeling heavily indebted, offers repayment anyway he can. Though she believes he is overreacting, Sekai decides to redeem her obligation by placing a kiss on his lips as her train pulls in; quickly rushing into an open passenger car and happily bidding a dumbstruck Makoto luck on his date. (Source: Wikipedia)

sola

Sola's story revolves around Yorito Morimiya, the main protagonist, who is a young boy attending high school. He loves taking pictures of the sky at any time of day and any time of the year. One day, Yorito decides to take a picture of the sunrise overlooking the bay, but is deterred when he meets a strange girl trying to force a vending machine that stole her money to give her what she tried to buy&mdash;a can of tomato juice. Yorito helps her with forcing the machine while attempting to strike up conversation with her, despite it being four in the morning. Yorito tells her why he is here, but by the time he has forced the can out of the machine, the girl has mysteriously vanished. (Source: Wikipedia)

Photo Kano

Kazuya, a mild-mannered high school sophomore coming to the end of a very average summer break, receives a digital single lens reflex camera as a gift. His nerdy fascination with its design soon turns to wonder when he realizes this little gadget could really give his social life a shot in the arm! (Source: TBS)

Listen to Me, Girls. I Am Your Father!

Yuuta Segawa is a freshman of a university. He lost his parents when he was small and was raised by his sister Yuri. Yuuta has been living alone since Yuri got married to a middle aged man when Yuuta was a junior high student. One day, Yuri visited Yuuta's apartment and asked him to take care of her three daughters while Yuri and her husband were on a trip. He unwillingly accepted the job but the plane Yuri took went missing. In order to prevent the daughters from being adopted separately by relatives, Yuuta decided to take in all three girls. A life of a strange family in a tiny apartment begins.