Get Lost in These 18 Must-See Isekai Harem Anime

Episodes: 12
Status: Finished Airing
Aired: Oct 10, 2018 to Dec 26, 2018
Producers: Sotsu
Licensors: Funimation

What does luck have in store for our Isekai MC? Can he be blessed with fortune beyond his wildest dreams? Can he be the proud father of 12 children?

Introducing Itsuki Yuge, transported to a mysterious world plagued by monster attacks.

But there’s a catch – only the “Star Children” have the power to defeat them, and they can only be born from 12 war maidens.
It’s time to find out just how lucky Itsuki is.

With the world’s fate resting on his shoulders, he must become the father of 12 children and rise to the challenge.

The stakes are high, and the challenges are daunting, but with luck on his side, Itsuki is ready to face it all and save the world.

Genres: Isekai, Harem, Fantasy
Final episode date: March 29, 2018
Language: Japanese

Tired of the daily grind? Ichiro Suzuki knows the feeling all too well. But when he’s suddenly transported to another world, he finds himself in a new level of excitement with a harem of adorable anime girls by his side.

Unfortunately, this show may not be for everyone. Despite the main character being 29, he still gives off an unsettling vibe of a babysitter or even a “daddy” figure.

From wiping up the spills of two lolis to fixing an older girl’s hair, the actions are peculiar and not in a good way.

It’s hard to ignore the submissive and monotone personalities of the characters, as their reliance on the main character overshadows them.

While it may make for a decent background show, there are far more thrilling and dynamic Isekai harems. Don’t settle for just okay; explore the vast world of Isekai harems and find the one that truly captures your imagination and heart.

Get ready for the premiere of The Greatest Demon Lord Is Reborn as a Typical Nobody! This show is a perfect match for fans of Isekai Harem anime.

Meet Varvatos, the once all-powerful Demon Lord reincarnated as a mere mortal with average magical abilities.

Tired of life as the strongest being, he opts for a change of pace. But he quickly discovers that the state of demons has plummeted, and even with restraint, he remains overwhelmingly overpowered.

It’s the typical nobody – a handsome, overpowered protagonist who has it all, including all the beautiful women’s admiration and affection.

Buckle up for a wild ride filled with action, romance, and drama!

In this anime, a young boy has his world turned upside down by the appearance of four fantasy anime girls. This is made even more complicated because the show has nine “waifus.”

Despite the numerous options, the main character struggles to make a romantic connection with any of them. Some viewers may not receive this trope of an indecisive, innocent main character.

The hesitation and lack of forward momentum in the romantic storyline can disrupt the show’s flow.

However, the girls are all charming in their ways, and the show offers a diverse range of personalities.

Brace yourself, folks, because this anime might haunt your dreams. Keep a night light handy between the isekai and the overflowing dose of suffering.

Meet Natsuki Subaru, a regular guy who one day stumbled into a fantasy world that’s not exactly what it seems. He’s got a unique talent, though – every time he bites the dust, he gets a do-over, starting from a certain point. Let’s say he’s gotten pretty good at dying (and restarting).

But despite his apparent misfortune, Subaru’s got a heart of gold. He puts others before himself and has a caring spirit that just won’t quit. It’s no wonder that two of the most sought-after waifus, Rem and Emilia, have taken a shine to him.

And let’s not forget the other ladies who are taking an interest in our brave and selfless hero.

Attention, all anime fans! Get ready for an epic adventure, as a whole school of students are transported to a mysterious fantasy world filled with an RPG system.

Seiichi Hiragi is a high school student bullied for his weight and appearance.

While his classmates were transported in groups, Seiichi found himself alone in a different location. Little did he know, his fate was about to take a dramatic turn.

After indulging in the “Fruit of Evolution,” Seiichi becomes a powerhouse champion, and his once gorilla waifu transforms into a stunning beauty.

For fans of shows like “Arifutera,” this one is a must-see. With newfound power comes the opportunity to start a harem, and Seiichi’s gorilla waifu is all for it.

Hold on tight because this anime is not your average ride! Be aware of its seemingly plain appearance; it packs a major punch, drawing inspiration from hit shows like Bakemonogatari.

From the get-go, one of the leading love interests heats things with a compelling food-sharing scene that’ll leave you both hungry and thirsty.

The harem may be a little one-dimensional, but it’s overflowing with sidesplitting “tongue-in-cheek” fan service that will have you in stitches.

And let’s remember the main character, who’s an absolute powerhouse, bringing life to every action scene. It’s going to be a wild and wacky harem adventure!

Step into the world of Tenchi Muyo! War on Geminar, a hidden gem among the isekai shows. It’s a shame that not many people know about this series, but trust us, it’s a banger!

Meet the main character, transported to a foreign world and trying to find his way back home. But life has other plans for him as he becomes a servant to a wealthy princess and is forced to attend a mecha school.

In addition, every woman he meets seems to want his affection.

But don’t underestimate our hero! With exceptional physical abilities achieved through training and a special diet, he’s a force to be reckoned with.

You won’t want to miss “No Game No Life,” a must-see anime about an isekai harem!

Despite having a smaller cast than other shows, this one is packed with non-stop entertainment, with the main plot following two shut-ins as they master a world of games through drama, deception, and fan service!

You won’t be able to look away as the beautiful artwork brings to life the questionable brother-sister romantic tension and an ever-changing cast of lovely characters, all vying for the attention of Sora and Shiro (especially Sora).

Featuring a rainbow of brightly colored outfits and hairstyles, “No Game No Life” showcases diverse characters of different ages and cultures, satisfying most fans.

But with just one season under its belt, fans are clamoring for more!

Imagine an anime that blends the best of Konosuba, Overlord, Slime, The Shield Hero, and Re: Zero. Welcome to Tsukimichi!

The story opens with a young boy being rudely transported to a new world. But instead of being a hero right off the bat, a wicked goddess denies him that role and dumps him on the fringes of her world.

Determined to create a harmonious community where all beings can thrive, our MC sets out to build “a monster town.”

With his unique ability to understand and speak all “monster languages,” he sets out on his mission, even though he can’t communicate with humans.

Though he doesn’t seem overpowered initially, the MC possesses magical energy that rivals the gods themselves!

Dying while saving someone? No problem! Just reincarnate into the ultimate fantasy world where you’re a legendary king, powerful enough to solo Goku.

That’s the story of Satoru Mikami, now known as Rimuru Tempest. This humble, kind ruler has amassed a loyal following, including some gorgeous ladies who can’t resist his charm.

Don’t be fooled by his humble beginnings as a slime; Rimuru is the epitome of a lucky guy living the ultimate fantasy life.

Step into the electrifying world of Sword Art Online, where the lines between reality and virtual reality blur. Kirito is an expert player trapped in a virtual world where death in the virtual world means death in the real world.

Along with 10,000 other players, Kirito is immersed in the immersive world of SAO, controlled by the power of his mind using a headgear. The stakes are high as the game’s creator, Kayaba, holds the players captive, promising freedom only to those who can conquer all 100 floors of Aincrad.

Kirito’s irresistible combination of skills and charm makes him the object of desire for many in-game girls.

But Kirito’s journey is far from mundane. As he progresses through the game, he meets a cast of characters, including some who will steal his heart.

If you’re a fan of isekai and gaming, Sword Art Online is not one to miss!

The main character in this Isekai Harem, Catarina Claes, uses her idiocy to drive the harem forward.

Instead of being smart and pleasing everyone in her Otome game world, she gets caught up in survival mode, forming a harem that she remains unaware of.

Despite being annoyingly clueless, fans can enjoy the show’s diverse cast of attractive characters with compelling personalities.

This show is perfect for experienced anime fans who love Ouran Host Club with an Isekai twist.

Author: Shinkoshoto
Genre: Isekai
Adaptations: The Strongest Sage With the Weakest Crest (2022)

Step aside, folks, because we’ve got an absolute powerhouse on the scene. Meet the protagonist of this anime, a sage so unstoppable not even death can slow him down.

That’s right; this guy doesn’t just come back from the dead; he comes back stronger than ever.

In a future era, he’s still the king of the mountain, leaving all those around him in awe of his immense power. Sure, they may underestimate him initially because of his unimpressive crest, but that’s their mistake.

With his vast knowledge, unrivaled experience, and unparalleled skills, he quickly proves he’s the real deal. He’ll teach anyone who tries to mess with him a lesson they will remember!

Diablo, the show’s main character, lives every gamer’s dream by being summoned to a fantasy world as the Demon King from Cross Reverie. When two beautiful ladies attempt to perform an Enslavement Ritual, it backfires, and they become Diablo’s slaves instead.

After getting to know them, he joins their journey to unbind the slave contract.

This show boasts steamy ecchi scenes, beautiful waifus, and a male protagonist who isn’t dense.

Diablo uses his overpowered equipment, potions, experience, and strategy to overpower his enemies and hone his instincts for annihilation.

He relies on more than generic powers, making him a unique and formidable battle force.

In Fushigi Yuugi, the female lead Miaka Yuuki, gets transported into a book and faces danger until Tamahome saves her. This encounter sheds light on why she was summoned to their world.

Miaka embarks on a journey to find her way home, but along the way, she collects several attractive men, including Tamahome, who has captured her heart.

As she faces the decision to return home or stay in the book’s world, the viewer is left wondering which choice she’ll make.

If you’ve already watched Fushigi Yuugi, relive the nostalgia by revisiting it.

Author: Ryo Shirakome
Genre: Fantasy, harem, isekai
Episodes: 25 + 4 OVAs (List of episodes)
Studio: Asread; White Fox (S1); Studio Mother (S2)

Arifureta is a classic tale of turning lemons into lemonade, or in this case, turning the weakest into the most OP. The protagonist transforms from a mortal to an unstoppable force after chowing down on some monster meat.

This gives him a physical boost and fuels his hatred toward his backstabbing classmates, leading to a complete overhaul of his personality.

Sure, the animation and story might leave something to be desired, but who needs that when you’ve got fan service and a protagonist who goes from zero to hero? This show proves that anything is possible with the right attitude and a little monster meat.

Author: Satoru Sao
Episodes: 24
English publisher: NA Sekai Project
Studio: A-1 Pictures

GATE is an incredibly underrated hidden gem, but don’t just take my word for it. This show delivers an epic isekai experience with a top-notch harem to boot.

Some may criticize it for being an advertisement for the Japanese self-defense force (JSDF).

Still, those in the know understand that it raises the age-old question: can a black hawk helicopter defeat a legion of medieval soldiers?

Spoiler alert: the helicopter wins and is nothing short of amazing.

And just when you think this show can’t get any better, it does. It’s packed with a compelling mix of cute elves, goth-loli vampires, eager princesses, and irresistible bunny girls, all of whom are age-appropriate love interests.

From the explosive action to the visually stimulating fan service, GATE blends classic anime tropes with a unique, realistic world that’s truly unforgettable.