"In the near future--Tokyo, Japan in 2040--
Reito, a young man suffering from an incurable disease, vows to reunite with his childhood friend Erisa and enters a "cold sleep" to cure his disease.
When he wakes up five years later, the world has changed dramatically.
The MK (Male Killer) virus has killed 99.9% of Earth's men.
With just five men and five billion women, it has become a super harem.
Only five men, known as " numbers," are resistant to the MK virus.
As one of them, Reito is asked to "mate" with the remaining women for the survival of humankind.
A harem lifestyle was waiting for him in a post-pandemic world.
Meanwhile, Reito is dragged into the global conspiracy surrounding the numbers.
Can he overcome temptation and save the world?"
World's End Harem has finished airing and it has 11 Episodes. It is also Known as: 終末のハーレム, Shuumatsu no Harem
Genres: Ecchi , Shounen , Harem , Science Fiction
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Top 8 Anime Like World's End Harem (Shuumatsu no Harem) [2026 List]
8. School Days
High school student Makoto Itou first notices Kotonoha Katsura at the start of his second semester, freshman year. Immediately, he becomes entranced by her beauty, but his bashfulness doesn't allow him to approach her, even though they ride the same train every day. Instead, he snaps a photo of her in secret and sets it as his cell phone's wallpaper: a charm that, if kept under wraps, would supposedly help you realize your love. However, classmate Sekai Saionji spots the picture, but instead of ratting him out, she offers to help set him up with Kotonoha—going so far as befriending her just for him. Thus, the trio begins a rather impromptu friendship. School Days follows the lives of these three teenagers as they traverse the joys and hardships that come with being a high schooler. In a story alive and brimming with romance and melancholy, the tale of these three students will linger in memory long after the momentous conclusion.
School Days has finished airing and it has 12 Episodes. It is also Known as: スクールデイズ, School Days
7. Nukitashi THE ANIMATION
The island of the everlasting summer, Seiran Island.
Junnosuke Tachibana, whose family home was on this island, returned to it with his sister, Asane Tachibana, after the death of their parents.
However, Seiran Island has become a place of madness due to the implementation of the “Perverted Law,” a law designed to combat population decline. This law permits and even encourages lewd sex acts everywhere on the island, and refusing to engage in “reproductive activities” is punished almost as severely as a crime.
Junnosuke, a proud virgin and staunch defender of virginity, questions the legitimacy of this law. Determined to protect both his and his beloved sister’s purity, he forms the anti-copulation front NLNS (No Love No Sex) and sets out to destroy the Perveted Law once and for all.
“I’ll… destroy the Perverted Law!”
Note: Prior to the TV broadcast, a special pre-release screening titled “Nukitashi THE ANIMATION – Seiran Island Special ver. Pre-release Screening Event” was held on June 22, 2025, at Cinem@rt Shinjuku in Tokyo. It featured episodes 1-3.
Nukitashi THE ANIMATION has finished airing and it has 11 Episodes. It is also Known as: ぬきたし THE ANIMATION, Nukitashi THE ANIMATION
6. Modaete yo, Adam-kun
"Why do you have an erection...? You're sneaky."
In a world where all humans have suffered from ED due to a pandemic, Kazuki, a male student, is the only special person who has escaped ED. In order to keep the secret, he transferred to a harem school full of women!? A kind and friendly senior, a frustrated female teacher, the school's prince, the daughter of a wealthy family, and more.
What will Kazuki, who can captivate any woman, choose?
Adam's Sweet Agony has finished airing and it has 8 Episodes. It is also Known as: 悶えてよ、アダムくん, Modaete yo, Adam-kun
5. Dr. Stone
Several thousand years after a mysterious phenomenon that turns all of humanity to stone, the extraordinarily intelligent, science-driven boy, Senku Ishigami, awakens.
Facing a world of stone and the total collapse of civilization, Senku makes up his mind to use science to rebuild the world. Starting with his super strong childhood friend Taiju Oki, who awakened at the same time, they will begin to rebuild civilization from nothing...
Depicting two million years of scientific history from the Stone Age to present day, the unprecedented crafting adventure story is about to begin!
Dr. STONE has finished airing and it has 24 Episodes. It is also Known as: Dr.STONE, Dr. Stone
4. Towa no Yuugure
After waking from a long cryogenic sleep, high school student Akira Himegami finds himself in a world he no longer recognizes. The city lies in ruins from war, society is now governed by an organization called OWEL, and traditional marriage has been replaced by a new system known as “Elsie.”
As Akira struggles to comprehend this drastically changed future, a familiar figure appeara before him—Yuugure, who bears a strong resemblance to his girlfriend Towasa. To his shock, Yuugure smiles gently and proposes: “Akira... please marry me.”
Confused by her sudden proposal, Akira agrees to travel with Yuugure, holding onto hope that somewhere in this world, the real Towasa is still alive.
Along their journey, they encounter the evolving forms of love in this new era and reflect on what their bond truly means.
Dusk Beyond the End of the World has finished airing and it has 12 Episodes. It is also Known as: 永久のユウグレ, Towa no Yuugure
3. Shinmai Maou no Testament
Running into your new stepsister in the bathroom is not the best way to make a good first impression, which Basara Toujou learns the hard way. When his father suddenly brings home two beautiful girls and introduces them as his new siblings, he has no choice but to accept into his family the Naruse sisters: busty redhead Mio and petite silver-haired Maria.
But when these seemingly normal girls reveal themselves as demons—Mio the former Demon Lord's only daughter and Maria her trusted succubus servant—Basara is forced to reveal himself as a former member of a clan of "Heroes," sworn enemies of the demons. However, having begun to care for his new sisters, Basara instead decides to protect them with his powers and forms a master-servant contract with Mio to keep watch over her.
With the Heroes observing his every move and the constant threat of hostile demons, Basara has to do the impossible to protect his new family members. Moreover, the protector himself is hiding his own dark secret that still haunts him to this day...
The Testament of Sister New Devil has finished airing and it has 12 Episodes. It is also Known as: 新妹魔王の契約者〈テスタメント〉, Shinmai Maou no Keiyakusha
2. IS: Infinite Stratos
Japan engineered an armed powered exoskeleton "Infinite Stratos" (IS) and it became the mainstream of weapons. Since only women can operate IS, women dominate the society over men. Orimura Ichika is a 15-year-old boy and accidentally touches an IS placed in the IS pilot training school. He is found to be the only man who can operate IS and forced to enter the training school. Ichika's busy school life surrounded by girls has begun.
Infinite Stratos has finished airing and it has 12 Episodes. It is also Known as: IS 〈インフィニット・ストラトス〉, IS
1. Kaifuku Jutsushi no Yarinaoshi
"Healing magicians cannot fight alone."Keare, who was bound by this common knowledge, was exploited again and again by others. One day, he noticed what lay beyond healing magic, and was convinced that a healing magician was the strongest class. However, by the time he realized that potential, he was deprived of everything. Thus, he used healing magic on the world itself to go back four years, deciding to redo everything.This is a heroic tale of one healing magician who became the strongest by using knowledge from his past life and healing magic.
Redo of Healer has finished airing and it has 12 Episodes. It is also Known as: 回復術士のやり直し, Kaiyari
