10 Isekai Harem Anime To Watch If You Love In Another World With My Smartphone

Isekai stories are all the rage in the anime world, transporting protagonists from mundane lives to fantastic worlds. The harem genre is also expanding, providing new shows for longtime anime fans. These fantasy harem anime transport main characters to new worlds, filled with charming female companions, action, comedy, and romance.

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In Another World With My Smartphone is a prime example of such shows. It follows the story of Mochizuki Touya, who dies in an accident and is reincarnated into a medieval fantasy world by God. Touya is allowed to bring his smartphone, which has been modified for the new world, and possesses overwhelming power in a world filled with magic, leading to some thrilling adventures. Here are some isekai harem anime to watch for those who love In Another World With My Smartphone.

Updated on December 27, 2024 by Mark Sammut: Galleries and specifications have been added for every recommended anime, along with a new series that aired in 2023.

10 The Fruit of Evolution: Before I Knew It, My Life Had It Made

An Isekai Harem With A Decent First Season

The Fruit of Evolution shares many similarities with In Another World With My Smartphone, but it is a more subdued version. Both anime feature a protagonist who becomes overpowered in a new world, with a flock of admirers forming around them.

Seiichi Hiiragi, a social outcast at his school, is unexpectedly transported to a parallel world with his classmates by a god-like figure. However, Seiichi is left behind due to his unpopularity. When he is eventually sent to the new world he is far from civilization and his classmates. Feeling hopeless, Seiichi discovers the "Fruit of Evolution," which offers the possibility of a better life.

9 Farming Life in Another World

A Sanctuary For Everyone, And A Harem Isekai Home

In Another World With My Smartphone's appeal is that it is pure wish fulfillment, to the point of purposefully avoiding any real tension. The anime offers a slice of life escape from reality, and there is absolutely nothing wrong with that. Farming Life in Another World should be able to scratch a similar itch, with viewers following Hiraku, a guy who dies and is allowed to pick what type of life he will lead next. He decides to be a farmer, and he is dropped in a fairly dangerous forest. Fortunately, he has a few abilities that simplify the work and allow him to survive.

While he spends some time alone as he builds up his homestead, Hiraku eventually finds himself attracting wayward souls who do not have anywhere to call home. Although not exclusively female, most of these characters are women, and some even marry Hiraku.

8 Death March To The Parallel World Rhapsody

Trapped In A Video Game World With Waifus

Death March to the Parallel World Rhapsody is a lighthearted fantasy isekai story similar to In Another World With My Smartphone. It follows Ichirou Suzuki, a tired programmer who wakes up in a fantasy RPG world after falling asleep as a 15-year-old boy named Satou.

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While grappling with his new reality, Satou is attacked by a group of lizardmen and his stats are maximized after he wipes them out with a powerful spell. Unable to return, Satou embarks on an adventure in this magical new world, much like Touya from In Another World With My Smartphone. Both anime share similarities in their isekai theme, overpowered main characters, and harem-building elements.

7 Arifureta: From Commonplace To World's Strongest

From Zero To Hero, And Picking Up Many, Many Girls Along The Way

Arifureta: From Commonplace to World's Strongest follows the standard isekai formula. This isekai harem follows the story of Hajime Nagumo who is invited to a fantasy world with his classmates to save mankind. Hajime is ridiculed for gaining only a subordinate ability, unlike his classmates.

Betrayed by one of them, he falls into an abyss and is forced to confront dangerous monsters. Determined to survive and return home, he is joined by Yue, an imprisoned vampire and other allies he encounters along the way. As he battles his way through the fantasy world, Hajime undergoes a transformation from a commoner to the world's strongest.

6 How Not To Summon A Demon Lord

Comedy, Action, And Harem

How Not to Summon a Demon Lord is an isekai anime about an elite gamer named Takuma Sakamoto, who finds himself in a new world as his character Diablo, the Demon King Diablo. He gains two slaves, an elf and a cat girl, after a summoning spell backfires.

Together, they set out to unbind their contract while struggling with interpersonal relationships and beast battles. The show is filled with humor, impressive magic, and a variety of female characters who try to win Diablo's affection. It's a great show for fans of the isekai and harem genres.

5 Outbreak Company

An Older Isekai Harem With A Decent Cast Of Characters

Shinichi Kanou is a shut-in otaku who is transported to the Eldant Empire, a fantasy world filled with elves and dragons, as an ‘Otaku Missionary’ to spread otaku culture. With the support of the Japanese government, half-elf maid Myucel and Princess Petralka, Shinichi works to improve Japan's relations with Eldant by sharing Japanese and otaku culture.

This anime is similar to In Another World With My Smartphone, with both series featuring main characters who become enthralled with their new worlds and use their modern-day knowledge to be valuable. Outbreak Company also later turns into a typical harem comedy.

4 How A Realist Hero Rebuilt The Kingdom

Taking A More Strategic Approach To Kingdom Building...Also Harem Building

Kazuya Souma's world turns upside down after his grandfather's death leaves him with no family. Suddenly, he is summoned to the Elfrieden Kingdom, a world in peril due to an ongoing war with demons. However, Kazuya is not content with being used as a pawn and decides to help the kingdom by improving the administrative processes instead of fighting.

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He becomes the King of Elfrieden and gathers a talented group of citizens to aid him in his bureaucratic battles to save the kingdom. With his new royal status and betrothal to the princess, Kazuya navigates political affairs and adjusts to his new life in this fascinating world full of unexplored depths.

3 The Ambition Of Oda Nobuna

A Trip In Time To The Sengoku Period

Yoshiharu Sagarawakes, a high school student, finds himself in an alternate reality where Japan's warlords are cute girls. A legendary warrior saves his life but dies in the process. Before passing away, he asks Yoshiharu to become a feudal lord in his place, changing the course of history. After rescuing Nobuna Oda, the female counterpart of the fabled Nobunaga Oda, he becomes one of Nobuna's retainers to find a way back home.

The series is similar to In Another World With My Smartphone, as the main character is sent to a different universe and retains something from their homeland that gives them an advantage. Yoshiharu uses his knowledge from playing "Nobunaga's Ambition" to aid the Oda clan's generals. Both shows also feature many young girls and contain fanservice.

2 My Next Life As A Villainess: All Routes Lead To Doom!

A Reverse Isekai Harem

Imagine being reborn as the villain in a game you used to play, with a predetermined fate of doom in every ending. This is the reality for Catarina Claes, who suddenly regains memories of her past life and realizes she is now living in the world of Fortune Lover. Catarina is not content with her doomed fate and decides to take matters into her own hands by using what she knows about the game to change the course of events.

However, she must tread carefully to avoid setting off any death flags that would speed up her inevitable demise. Despite the challenges, Catarina is determined to make a positive impact on those around her, not as the game's heroine but as the unlikely protagonist. Fans are bound to be intrigued by the entertaining reverse harem situation featured in this anime series.

1 Seirei Gensouki: Spirit Chronicles

A Relaxing Isekai Harem

This story features harem themes and an overpowered main character who is reincarnated into a different world. Some scenes may even seem reminiscent of In Another World With My Smartphone. Haruto Amakawa, a 20-year-old college student, dies in a traffic accident and is unexpectedly reborn as a young boy named Rio in an unfamiliar world.

Rio soon discovers that he has magical abilities and that his Intense longing for revenge against his mother's killers still exists, despite his new identity. After rescuing the princess of Bertram Kingdom, Rio is allowed to enroll in the prestigious Bertram Royal Academy, which he sees as a fresh start. However, Rio, who is from a slum, struggles in a world dominated by the wealthy and powerful nobles.

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