Top 10 Ecchi Harem Anime

Here My Top 10 Ecchi Harem Anime

 

1. Shinmai Maou No Testament

 Basara Tōjō is a high school student studying at Hijirigasaka Academy when his father Jin suddenly gets "remarried" and asks Basara if he wants to have sisters. Basara meets his two cute stepsisters, Mio Naruse and Maria Naruse. After his father departs overseas, Basara quickly finds that the two sisters are actually part of a demon clan, and he is meant to be with the hero clan. Mio, a Demon princess, forcibly attempts to make a master and servant contract with Basara, but Maria has it end up being the opposite. Basara is then always getting into ecchi scenarios, more the while, to protect Mio from being pursued by other demons who are after her heritage passed down by the former Demon Lord Wilbert.

2. Highschool DXD

 

 Kuoh Academy (Kuō Gakuen, alt. Kuou Academy) is a former all-girls school that has recently turned co-ed, but it has a secret. Unknown to normal humans, Angels (Tenshi), Fallen Angels (Datenshi) and Devils (Akuma) comprise part of the student population. One of these students, Issei Hyodo, is a lecherous second-year human student who lives a peaceful life. After an ordinary school day, Issei is suddenly asked out on a date by a girl named Yuma Amano. After their date, Yuma brings Issei to a local park and makes a startling request. She reveals herself as Raynare, a fallen angel, and she tries to kill him. Using her summoning card, Rias Gremory, a buxom third-year student at Kuoh Academy, revives him. Issei wakes up the next morning, thinking that the events that occurred were all just a dream. Immediately after being attacked by another fallen angel and waking up, he notices Rias naked in his room. Rias reveals to Issei her true identity as a devil and says that as a result of his death at the hands of Yuma, she has reincarnated him as a devil, becoming his new master in the process.

3. To Love Ru Series

The story of To Love-Ru revolves around Rito Yūki, a shy and clumsy high-school student who cannot confess his love to the girl of his dreams, Haruna Sairenji. One day when sulking in the bathtub, a mysterious, naked devil-tailed girl appears out of nowhere. Her name is Lala, the runaway crown princess of the planet Deviluke. Her father wants her to return home to marry one of her marriage candidates. When Devilukean commander Zastin arrives to bring her home, she swiftly declares she will marry Rito in order to stay on Earth, leading Zastin to attack Rito. But when Rito angrily declares that marriage is only possible with the person you love, the two dull-witted aliens misunderstand him, believing he truly understands Lala's feelings. Lala quickly falls in love with him, and Zastin also approves of their engagement, much to Rito's dismay. While Zastin reports his support for the pair to Lala's father, the King of Deviluke and much of the known universe, Rito reluctantly helps Lala transition to life on Earth, while gradually befriending his dream girl, Haruna, along with a colorful cast of other girls, both humans and aliens. In the meantime, Rito must also fight off Lala's antagonistic alien suitors, one of whom sends the alien assassin, Golden Darkness (also known as Yami) to kill him.
The story continues in To Love-Ru Darkness, which focuses on Lala's little sister, Momo. The twin sisters, Nana and Momo, have since come to live with Lala in Rito's house. While Rito remains indecisive between his longtime crush on Haruna, and his growing affection for Lala, Momo has also fallen in love with Rito. But not wanting to steal Rito away from her sister, Momo instead plots to build a harem of girls around Rito, hoping that if Rito marries Lala and becomes king of Deviluke, he can legally marry every girl who is in love with him, including Momo herself. While Momo works in the background and plays matchmaker with Rito, a plethora of beautiful girls gradually enter Rito's life and warm up to his kindness, including Golden Darkness, who has since lived peacefully on Earth but struggles to escape her dark past. Thus, Rito's otherworldly love troubles continue.

4. Sora No Otoshimono 

Tomoki Sakurai is a perverted teenage boy whose motto is "Peace and quiet are the best," and often has dreams of meeting an angel. He finds it difficult to live in comfort when he has to put up with Sohara Mitsuki, his next-door neighbor with a killer karate chop; Eishiro Sugata, an eccentric pseudo-scientist bent on discovering the "New World"; and Mikako Satsukitane, their school's sadistic student council president. One night, while he was witnessing a strange anomaly in the sky, a UMA (Unidentified Mysterious Animal) crash-landed nearby. Tomoki discovers that what fell from the sky is a winged female humanoid named Ikaros from an unknown world of Synapse, who soon declares herself to be Tomoki's servant. From then on, more creatures known as "Angeloids" arrive; with this, he loses his peace and quiet, but at the same time finds pleasant things the Angeloids bring him, and fight the forces that fall upon Earth.
 

5. No Game No Life

Sora and Shiro are two hikikomori step-siblings who are known in the online gaming world as Blank, an undefeated group of gamers. One day, they are challenged to a game of chess by Tet, a god from another reality. The two are victorious and are offered to live in a world that centers around games. They accept, believing it to be a joke, and are summoned to a reality known as Disboard. There, a spell known as the Ten Pledges prevents the citizens of Disboard from inflicting harm on one another, forcing them to resolve their differences by gambling with games whose rules and rewards are magically enforced. In-game, rule enforcement only occurs when the method of cheating is acknowledged and outed by the opponent, allowing players to cheat through discreet methods. Sora and Shiro traverse to Elkia, the nation inhabited by humans, and befriend the duchess Stephanie Dola. Learning about Elkia's decline, the two participate in a tournament to determine the next ruler; after winning the crown, they earn the right to challenge the Disboard's other species as humanity's representative.Their next goal is to conquer all sixteen species in order to challenge Tet to a game; as of the sixth volume, five of the sixteen are under their control.

6. Kiss X Sis

 Keita Suminoe is a third-year Japanese middle school student living with his father, stepmother, and older twin stepsisters, Ako and Riko. Since the remarriage of their parents at childhood, the siblings have always been affectionately close and supportive of one another. Nowadays the trio see their opposites in a noticeably less platonic fashion; Ako and Riko frequently flirt and lust after Keita while, much to his stress, he fights the urge to give in to them.

7. Trinity Seven

 Arata Kasuga lived a normal life together with his cousin and childhood friend, Hijiri Kasuga, in a small town. However, everything changed on the day of the Black Sun. The Black Sun caused the Breakdown Phenomenon which destroyed the town where he lives and took Hijiri away. As Hijiri starts disappearing, she hangs a grimoire to his neck, asking it to protect Kasuga. Desperate on losing Hijiri and all of his other friends and family, Kasuga asks for his world to be good again, which leads to the grimoire artificially reconstructing his normal life, and making him forget the destruction of the city and Hijiri's disappearance. Lilith Asami, a mage, is sent to investigate the ruins and she finds the powerful spell in their stead. She makes Kasuga remember the actual events and consequently the spell is broken, not without the grimoire telling him that Hijiri is alive. Kasuga decides that his only option is to become a magus himself so he could rescue Hijiri and he thus joins the Royal Biblia Academy, a secret school for mages that deals with magical issues around the world. There he is introduced with the Trinity Seven, seven powerful female mages who are at the top of their respective fields (Lilith being one of them) who will help him in his goal of becoming a powerful magician and find the truth about Hijiri and the Black Sun. He soon finds out that another of the Trinity Seven, Arin, looks almost exactly like his missing cousin although she shows a completely different personality.

8. Seikon No Qwaser

 The story chronicles the school lives of Mafuyu Oribe and Tomo Yamanobe at the Japanese Eastern Orthodox school St. Mihailov Academy where they have endured persecution and isolation from other students led by the daughter of the current dean Miyuri Tsujidou and her second-in-command Hana Katsuragi. Mafuyu and Tomo's lives take a drastic turn when they nurse the silver-haired Russian-born Alexander "Sasha" Nikolaevich Hell back to health upon encountering him unconscious during their home commute one day. Almost immediately, Sasha begins to repay Mafuyu and Tomo's humanitarianism as he repels their tormentors; however, this does not change Sasha's prologue as a throw-away Qwaser from the Adepts and that the Adepts have no qualms about making an absolute war zone of the Academy in order to acquire the Theotokos of Tsarytsin from Athos who wishes to keep the icon's existence a secret from the world.

9. Hagura Yuusha No Estetica

 The story follows a world where several young men and women regularly find themselves spirited away to a world of sword and magic called Alayzard (Areizādo). Those who survive and return are typically gifted with magic abilities. An international training organization named Babel protects these young returnees and trains them in the use of their power. A wayward hero named Akatsuki has come back to his world, along with a beautiful girl called Myuu who is the daughter of the Last Dark Lord, whom he defeated in battle.

10. Zero No Tsukaima

Louise is a noble girl who is terrible at magic, as her attempts usually result in an explosion. She is nicknamed "Louise the Zero" by her classmates, due to the inability to use any of the four magic elements. Early in the school year at the Tristain Academy of Magic, the second year students perform a special ritual where they summon their familiar, which serves as their eternal protector and partner, and is usually some sort of magical creature. But Louise summons Saito Hiraga, an ordinary teenage boy from Japan, leaving her totally humiliated.
Due to the sacredness of the ritual, Louise reluctantly accepts Saito as her familiar, but proceeds to treat Saito as any other familiar, only worse, making him wash her clothes, sleep on a bed of hay, and whipping him with a riding crop for little or no reason. The Familiar of Zero follows the adventures of Louise and Saito as they help their classmates and friends, while occasionally blundering into situations where they risk their lives to save one another. Saito tries to find a way to get back to Japan, but he also has a mysterious power that allows him to wield swords and other weapons to perform heroic feats. They also eventually learn the truth behind Louise's magic inabilities. As Saito's and Louise's friendship grows and they start to work together, they ultimately fall in love with each other.

 

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