The Reason Why Raeliana Ended up at the Duke's Mansion

Alt title: Geunyeoga Gongjagjeolo Gaya Haessdeon Sajeong

If you're looking for anime similar to The Reason Why Raeliana Ended up at the Duke's Mansion, you might like these titles.

Ikebukuro West Gate Park

Ikebukuro West Gate Park

I agree

Bokura no Nanokakan Sensou

Bokura no Nanokakan Sensou

On the day before summer vacation, every boy in a first-year class of a downtown Tokyo middle school disappears. Was it some accident? A mass kidnapping? Actually, the boys holed themselves up in an abandoned factory on the riverbed. With support from the schoolgirls, the boys start a revolution against the adults from this "liberation zone."

I agree

Satsujin Kippu wa Heart-iro

Satsujin Kippu wa Heart-iro

Seiko (with her cat Gonbei) is on the trip to Nagasaki by train, where she met young guitarist, who was supposed to be dead according to newspaper. Things get complicated when Seiko discovered hanged woman in woods near Nagasaki – and it seems that it wasn't suicide, but murder.

I agree

Babylon

Babylon

Zen Seizaki is a prosecutor with the Tokyo District Public Prosecutors' Office. While investigating illegal acts by a certain pharmaceutical company, Seizaki stumbles across a conspiracy over an election for an autonomous "new zone" established in western Tokyo.

I agree

Loups=Garous

Loups=Garous

After a virus claims millions, most live in the safety of a closed-off world, relegating themselves to an on-line existence. But when a young girl decides to brave life outside the virtual world, she finds a group of friends—and a killer. Someone is hunting and violently murdering children. Who? And why? And is she the next target? Get plugged in to the the cyber-shocking animated thriller, Loups=Garous!

I agree

Penguin Highway

Penguin Highway

Schoolboy Aoyama is bright, inquisitive and a bit headstrong. He has a lot of brainwork to get busy with – after all, he’ll be an adult in just a few thousand days. For the moment, though, he’ll have to live life as a fourth-grader. Not that it’s a bad life. Summer has arrived and school’s nearly out. He has a crush on an intriguing older woman he’s met at his dentist’s office, who’s coaching him in his chess game. And a colony of penguins has materialized in the middle of Aoyama’s sleepy little town. Where on Earth – or elsewhere – did these waddling interlopers come from? Aoyama and his friends embark on a research mission, applying rigorous scientific methods and principles. Their discoveries, however, only lead to ever more puzzling wonders…

I agree

Romeo x Juliet

Romeo x Juliet

On a tragic night in Neo Verona, the Capulet family is murdered by Montague and the country is seized. The only Capulet survivor is the child Juliet, who is rescued by loyal knights. Fourteen years later, people in Neo Verona live in poverty and fear. Juliet has spent her life in hiding, and in disguise as the male Red Whirlwind, secretly fighting Neo Verona’s oppression. On one of her secret adventures, she is helped by Romeo and falls in love. Finally, on one fateful day, Juliet’s family reveals her heritage and their desire for her to reclaim her title and rescue Neo Verona from tyranny. Meanwhile, Juliet also discovers that Romeo is the son of her worst enemy. Can Juliet rescue Neo Verona and kill the father of the man she loves?

I agree

Chou Shounen Tanteidan NEO

Chou Shounen Tanteidan NEO

Tokyo, year 2117. Boy detective Yoshio Kobayashi the 7th wants to help protecting the peaceful life from unknown threats, particularly those from hidden, mysterious criminal organizations. Things usually don't progress as he has expected, though.

I agree

The Perfect Insider

The Perfect Insider

For most people, finding a dead body on their vacation would mean the vacation is over. However, for Souhei Saikawa, a professor of architecture, and his student Moe Nishinosono, a math prodigy, it's a different kind of challenge. Genius programmer Shiki Magata, one of Souhei's idols, is inexplicably murdered inside the sealed research lab she disappeared to after being found innocent of her parents' murder. As Souhei and Moe take the first steps into a deadly new world, they must untangle the complex web of events and clues leading up to the murder. With danger creeping up around them, this may be the last mystery this pair of human anomalies attempts to solve in THE PERFECT INSIDER!

I agree

Kaitou Lupin: 813 no Nazo

Kaitou Lupin: 813 no Nazo

I agree