Nisekoi

As a child, Raku Ichijo made a secret promise with his childhood sweetheart, keeping a pendant as a memento while his love took the key. He dreams of one day meeting his past love, but years later, reality smashes his hopes when Chitoge Kirisaki accidentally knees him in the face... Though Raku's a normal high schooler, his family heads the notorious yakuza gang the Shuei-Gumi faction! And he's dragged into family affairs when he's forced into a relationship with Chitoge, the daughter of a rival gang's boss! Despite their constant spats, the two somehow fool everyone with their false relationship. Raku then discovers that Chitoge has a mysterious key from her past, which she can't remember... Plus, two other girls appear with keys as well—Kosaki Onodera and Marika Tachibana! Caught in the midst of this love maelstrom, even more complications arise for Raku when his class decides on Romeo and Juliet as the class's play for the school festival. Can the two false lovebirds pull off the impossible and make the play a success? (Source: Viz Media)

The Quintessential Quintuplets

Uesugi Fuutarou, a high school second-year from a poor family, receives a highly appealing offer to work part-time as a tutor... but his students turn out to be girls from his own class! What's more, they're quintuplets... and all five are beautiful, but happen to be problem students who have borderline grades and hate studying! Looks like his first assignment will be to win all the sisters' trust?! Every day is a wild party in this rom-com centering around the quintuplet sisters of the Nakano household! (Source: Crunchyroll)

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)

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.

Shomin Sample

In a hidden school surrounded by mountains, young ladies of good families are taught everything a high class lady needs to know. They are also completely cut off from the outside world, keeping them sheltered and innocent. However, a problem has come up recently—more and more graduates are failing to cope with the modern world after graduation. To deal with this problem, they've decided to kidnap a male commoner student, and enroll him as a student. They hope that this will be a gentle way to introduce the girls to the outside world. Kagurazaka Kimito is chosen for this dubious honor, mostly because he seems utterly average. However, the school leaders also seem to have concluded he's a homosexual with a muscle fetish. When Kimito hears that the alternative may be castration (to protect the girls' purity), he eagerly plays along with this misconception. Now he'll just have to survive the attention of many high class young ladies that are completely out of touch with the world! (Source: MangaHelpers)