NAKAIMO: My little sister is among them! - Recommendations

• TV (12 eps)
• 2009

One day, after a visit to his parents' grave, Teppei Arima spies a damsel in distress, and nobly saves her from a gang of thugs. Relieved and grateful, she introduces herself as Princess Charlotte Hazelrink. Thinking nothing more of this, Teppei soon receives a surprise call from his grandfather, informing him that he is the heir to the Arima business empire and therefore one of the richest men on the planet! Teppei is introduced to his personal maid, Yuu, and various blue-bloods, among them his arranged fiancee, Sylvia - a fencer with a tongue as sharp as her blade. At school the next day, Teppei meets more new faces, including the snooty Seika Houjouin, and - much to his surprise - Princess Charlotte Hazelrink. Still awkward and uncouth, Teppei must somehow adjust to high society. With girls pursuing him at every turn, however, that may be the least of his concerns...

• TV (12 eps)
• 2003

Maiku Kamishiro has always had a photo of himself as a child in front of an old house with a young girl. One day after spotting the building in a news report, the high school boy moves to the countryside to live in the house from the picture. While living alone, making ends meet by working as a freelance programmer, Maiku gets the shock of his life when not one, but two girls turn up on his doorstep claiming to be his twin sister! With the lively Miina and timid Karen both possessing the same photograph, the pair begins living with the confused Maiku as they try to figure out which one of them is actually his sister.

• TV (12 eps)
• 2008

When Junichi 'Gene Killer' Nagase saved the beautiful and wealthy Yuuhi Katagiri from bullies one day, he had no idea that he'd actually assisted his would-be wife! For what Junichi didn't know is that he and Yuuhi's fathers decided they would be wed, and Yuuhi has arrived in his town to decide if her betrothed is good enough for the job. After a humiliating and unwanted first kiss, Yuuhi moves in with Junichi to evaluate his worth; and thus, Junichi's life is changed forever. With embarrassing situations at every turn and a bride-to-be that thinks he's uncivilized and brash, what's a guy to do?

• TV (12 eps)
• 2012

Akito Himenokouji and his twin sister Akiko are close - in fact, maybe a little too close for Akito’s comfort, as his sister has an unrestrained brother complex! Though her brother doesn’t take her lustful feelings seriously, Akiko is determined to set the record straight with the other ladies around him, including the three other beauties that live in his dorm and want the boy for themselves. Every morning, noon and night, the girl continues her mission to cross the line with Akito, and she won’t let any girl or sense or morality get in her way - for as long as there’s love, it doesn’t matter if he’s her brother!

• TV (12 eps)
• 2014

Mitsuki and Yuuya have just become step-siblings, and are working to adjust to their new lives as a family living within the same house. While Mitsuki is cautious of this new relationship with her ‘older brother’, her inhibitions quickly take a turn for the perverted when she’s suddenly possessed by Hiyori, a ghost girl with amnesia. As if things couldn’t get any worse, Hiyori forcibly outfits her with a chastity belt that’s so restrictive it often causes the girl to pee herself - not to mention, in order for Hiyori to finally reach heaven, Mitsuki needs to experience a certain amount of sexual pleasure and energy… with her big brother! Now, between trying to not soil herself and trying to get used to Hiyori’s hands between her loins, Mitsuki will do her best to survive her new "family" life with, or without, her virginity intact.

• TV (13 eps)
• 2013

A year has passed since the day Kyousuke discovered his little sister’s eroge stash and was forced to enter her deviant, secretive world against his wishes! Now, Kirino has just returned from America and is treating her brother as poorly as ever, but old habits don’t die easily and soon, Kirino once more decides to make Kyousuke an essential part of her life. Whether it's helping her buy a mountain of anime and dating sims, trying to convince Kirino to prioritize her friend over a dating sim character or helping with getting a persistent modeling agent off her back, if it's for his little sister, Kyousuke will give his all!

• TV (12 eps)
• 2019

Kisaragi Amatsuyu thinks he’s hit the jackpot after popular upper-class girls Cosmos and Himawari invite him out! But to his sheer disappointment, they spill a juicy secret: the girls are into his friend and not him. Overhearing this reveal, a girl in the shadows begins to pester Amatsuyu, finding enjoyment in his lady woes. But he’ll soon find out this girl is the only one who likes him!

• TV (12 eps)
• 2019

Once upon a time, Cinderella left her panties in a boy’s locker… wait, what?! Keiki Kiryu receives a mysterious love letter, that has no name, but includes a pair of white undies. Curious to find this panty-leaving-Cinderella, his investigation leads him to discover that every candidate is… a total pervert! Surrounded by perversion he still has one important question to answer: who’s the perfect fit?

• TV (12 eps)
• 2011

At a school full of geniuses from varying fields of study, Taketo Akutagawa has a special – albeit different – genius as well: writing harem novels. Now amongst the other geniuses, he aims win the interclass competition and be recognized as the world’s greatest harem writer

• OVA (1 ep)
• 2014