The Perfect Insider

Alt title: Subete ga F ni Naru: The Perfect Insider

If you're looking for manga similar to The Perfect Insider, you might like these titles.

Mayonaka no X Giten

Mayonaka no X Giten

Kamiya Hiroki always thought women had it easy. This thought was throttled by the fact that his 24-year-old sister does not work and plays games all day. Why couldn't he have it this easy? He wanted to become a woman and be lazy like his sister. After blogging about his rants about his sister online, a mysterious reader comments on his blog, stating that there are ways to swap bodies with others. This would bring Hiroki's dream of becoming a woman to reality . Unfortunately for Hiroki, swapping bodies had unintended consequences when he returned to his own body.

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Reasons you might like Mayonaka no X Giten...

Epimondas Epimondas says...

If I didn't know better, I would almost swear both stories are the same or perhaps by the same author.  The setting; experimental nature (one based in a lab the other experimenting with spells from things like tarot cards.); smart sleuths; graphic nature of a horrible past involving the family of one or more main characters; a link to the past; a complex mystery; an impossible crime; a smart opponent; the horrifying threat of being stuck in the same room as a psychopath and more are in both stories.  I almost wondered if Perfect Insider was a modified anime version of Mayonaka since they are so oddly similar.  There are some differences such as a more supernature setting in Mayonaka to a more sci fi one seen in this show.  The characters are somewhat similar too.  There is an older character; young student; a smart girl who is capable of solving crimes; a range of potential suspects; and a rich girl who is really close to the main character.

The similarities are so strong and sharp it can be hard to see the differences.  Both stories start with a horrendous murder of family of the main character.  The crimes of that past directly correspond to the tragedy in the current time.  One of the main characters in both is accused of killing their own family and both claim not only innocence but that someone else did it.  Both of these characters oddly accept a kind of isolated punishment from the entire world.

Inakunare, Gunjou

Inakunare, Gunjou

16-year-old Nanakusa is spending his mundane life on "Stairway Island" where he found himself "discarded" along with 2000 other people, all missing the memories of the time just before they arrived there. The name of the island originates from the long stairway running through the island and extending up to the summit of the mountain where the witch who rules the island is said to live. The only way to leave the island is by finding what was lost. Yet Nanakusa doesn't wish to leave this stagnant island. He enjoys his life there. That is until Manabe Yuu, his childhood friend appears in front of him, and turns his new life upside-down. Why did Manabe Yuu, the world's most optimistic person, get discarded, and who is the witch behind all these mysterious occurrences? Follow Nanakusa and Manabe as they uncover the true nature of Stairway Island.

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Inakunare, Gunjou: Fragile Light of Pistol Star

Inakunare, Gunjou: Fragile Light of Pistol Star

16-year-old Nanakusa is spending his mundane life on "Stairway Island" where he found himself "discarded" along with 2000 other people, all missing the memories of the time just before they arrived there. The name of the island originates from the long stairway running through the island and extending up to the summit of the mountain where the witch who rules the island is said to live. The only way to leave the island is by finding what was lost. Yet Nanakusa doesn't wish to leave this stagnant island. He enjoys his life there. That is until Manabe Yuu, his childhood friend appears in front of him, and turns his new life upside-down. Why did Manabe Yuu, the world's most optimistic person, get discarded, and who is the witch behind all these mysterious occurrences? Follow Nanakusa and Manabe as they uncover the true nature of Stairway Island.

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Amai Wana - Soshite Dare mo Ai o Shiru

Amai Wana - Soshite Dare mo Ai o Shiru

What will a group of six good-looking men do when they found themselves trapped on a resort island? Will they find the master-mind behind their imprisonment?

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Umineko no Naku Koro ni Episode X

Umineko no Naku Koro ni Episode X

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Boukyaku no Cradle

Boukyaku no Cradle

The world is in a tense political situation, and one country has instituted a new mandatory education program for all children fifteen and up. It's a half-year program that puts the children through military training. Kazuki has traveled to an installation on Yurikago ("Cradle") Island for his half-year of training along with many other boys. Kazuki has no special physical talent, but he has a remarkably good memory. His closest friend in the training, Sai, is top-notch at everything and not particularly liked by some in their class.One day, their relatively ordinary life in training comes to an abrupt end. Kazuki awakes to find the island facility in ruins. He has no idea how much time has passed, or what has happened. Soon he meets up with Sai and a strange little girl with a cat, and they begin to try to figure out their situation. What has happened to the island, and to their country?

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Summer Time Render

Summer Time Render

Upon hearing of Ushio's death, Shinpei returns to his hometown of Wakayama City on Hitogashima and reunites with his childhood friend's family. The funeral goes smoothly, but under the surface something strange is brewing on the island. What mysteries await him on this secluded summer island?

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Umineko WHEN THEY CRY Episode 8: Twilight of the Golden Witch

Umineko WHEN THEY CRY Episode 8: Twilight of the Golden Witch

It's time once again for the annual family gathering on Rokkenjima! Ange Ushiromiya is just getting over a cold, but that won't dampen her excitement at seeing her cousins again! Granddad couldn't be more thrilled to see his beloved grandchildren and throws a special Halloween party where everyone gets lots of treats! By lunchtime on the first day, the aunts and uncles are chatting up a storm, and the cousins are eagerly planning the afternoon's fun. It's the very picture of a happy family - one that in no way resembles the bickering, bitter Ushiromiya clan! What is going on?!

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Tetsumin

Tetsumin

Miro Takizawa was born and raised on the peaceful island of Sasaraijima, an island surrounded by mountains and ocean. This introverted girl has lived her first year in high school peacefully, falling in love and trying to make friends. Her peaceful life takes a sharp turn for the worse as she discovers the secrets of the "Tetsumin." Dark secrets await her as these horrific entities endanger the inhabitants of this once peaceful island.

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Wandering Island

Wandering Island

Mikura Amelia is a free-spirited young woman who lives alone with her cat and operates an air delivery service, flying her vintage seaplane to Japan’s small island communities located hundreds of miles out in the Pacific. When her beloved grandfather passes away, she discovers he left her an undelivered parcel, addressed to an island that doesn’t exist . . . or does it? To answer the question, Mikura flies off in search of the truth behind the Wandering Island!

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