10 Most Extreme Ecchi Anime That Push Boundries Beyond

Extreme ecchi anime push the boundaries of sexual content in animation to the absolute limit.

Definitely not for the easily embarrassed, these lewd anime series feature graphic depictions of sexual acts, body revealing shots, and perverse humor.

They cater specifically to mature adult viewers who want titillating stories and don’t mind borderline fanservice.

While run-of-the-mill ecchi anime implies sexuality with revealing outfits and accidental groping, borderline romance ecchi anime took it to a further level; you know what I am trying to say.

If you love lewd comedies with no restraint, then strap in for the wildest ride of your otaku life with these uncensored, overtly erotic ecchi anime.

(Below content is specifically organized for information purposes, and is best suited for mature audiences.)

(I have tried to use very less explicit images on purpose, you can’t judge its ecchi-ness with these images.)

10: SUPER HXEROS

SUPER HXEROS extreme ecchi anime

SUPER HXEROS is an anime with a lot of sensuous content that caters to the extreme ecchi type.

Because of its unapologetic embracing of sexual themes and explicit moments, it stands out as one of the ecciest anime.

Kiseichuu, an alien species, is attempting to gradually eliminate humanity by controlling and draining humanity’s sexual energy.

Five of the most attractive high school students on the planet must come together to confront the extraterrestrial threat.

In my sense, Ecchi anime is considered good for its character designs, as you know, in ecchi anime we don’t have to worry about plot or storyline.

This anime was aired in the summer of 2020 by a renowned Studio “Project No. 9,” so sit tightly to enjoy the perviest scenes with admirable animations and character designs.

9: Seven Mortal Sins

Seven Mortal Sins is an ecchi anime with a casual yet suggestive tone that encourages enticing fan service.

Follow Lucifer, a seductive devil, as she travels across the underworld in the plot to overthrow Seven Mortal Sins. The vengeful ambitions of her get entangled in risqué moments and fan service that will make you blush.

With its alluring character designs and steamy scenes, this series takes the ecchi genre to new heights. If you’re a fan of such fanservice, you definitely gonna like it.

8: To Love Ru

Follow Rito, a typical high school student, as he unintentionally discovers Lala, a seductive princess from space, in his bathtub.

Expect a wild ride of ecchi experiences as Rito is surrounded by a plethora of alluring extraterrestrial women.

This series provides an appealing blend of romance and sexual humor, from sensual bath scenes to bizarre extraterrestrial blunders.

Despite releasing in 2010, this extreme ecchi anime allure audience with females’ curvaceous bodies and flirtatious expressions.

7: The Qwaser of Stigmata

The Qwaser of Stigmata is about Mafuyu and Tomo, two kickbutt sisters at a school for Qwasers, people who can control elements by getting power from Soma (basically breast milk).

It’s crazy ecchi – as Mafuyu has to suck Soma from other girls to reload her powers in the middle of battles! She and Tomo get caught up in a struggle involving a mysterious Icon relic that supercharges Qwasers’ abilities.

Of course there’s tons of Soma-sucking fanservice as Mafuyu takes on rival Qwasers. This wild action series really milks the ecchi absurdity!

The excessive use of sexual themes may overshadow other aspects of the anime like its complex plot. Still, if you’re looking for a borderline hentai anime, this anime is one of the most recommended.

6: Ladies Versus Butlers

Ladies Versus Butlers is about this dude Hino Akiharu who signs up to go to this fancy school called Hakureiryō Academy to learn how to be a butler. But of course things get crazy right away.

Some hilarious misunderstandings happen that make him look like a total perv to the girls at the school! As a pervy fan, you should know what misunderstandings I am talking about.

He’s just trying to survive his butler training, but between the steamy situations, the wacky love triangles, and the girls causing chaos at every turn. His school life is anything but normal!

A glance at anime poster provides an idea of how ecchi-est this anime would be. As an anime fan service lover, you get the minimalist plot and bundles of naughty hentai moments that makes this anime worthy of being on this list.

5: Kiss X Sis

Kiss X Sis follows a guy named Keita who suddenly gets two hot older step-sisters when his dad remarries, yup! It definitely sounds like a typical ecchi anime setup.

The sisters, Ako and Riko, are super flirty with Keita and compete for his affection in ecchi ways, even though they know it’s wrong.

Like there’s a lot of inappropriate kissing, bathing together, bedroom antics – stuff siblings definitely shouldn’t do! Things get more complicated when his real sister shows up too!

It’s extremely ecchi and caters to viewers looking for sexually explicit anime with essentially hentai-level content, though still has some plot and balance of comedy, romance, and sensuality.

4: HighSchool DXD

borderline ecchi anime

Highschool DxD is about a pervy dude named Issei who gets killed by his first-ever girlfriend, who turns out to be a fallen angel.

But then Rias, a super hot demon princess, revives Issei as her servant and lets him join her demon harem.

There’s tons of ecchi stuff like magical clothes-destroying battles and seeing the girls naked. Issei levels up his powers and joins Rias’s club to fight angels, fallen angels, and devils while assembling his own personal harem.

Of course, he runs into all kinds of sexy supernatural ladies who fall for him along the way.

The disproportionate focus on female characters’ bodies/sex appeal rather than personality or strengths is a con of watching this borderline hentai anime. But if you can bear with its plot con, you’re good to go with it.

3: Interspecies Reviewers

Interspecies reviewers anime

Frankly speaking, this anime’s whole plot is related to sexual elements, it literally has nothing else to show.

Interspecies Reviewers is about a group of adventurer dudes who decide to review all the brothels and rate the different species who work there, like elves, fairies, catgirls, etc.

They have some wacky ecchi encounters trying out succubi and medusas too. There’s tons of straight-up hentai-level stuff as they sample everything from rich noble escorts to back alley potion brothels.

The reviewers take their lewd research very seriously, so expect lots of steamy shenanigans as they debauch their way through all kinds of interspecies pleasures!

Why I have ranked this anime lower despite literally targeting an extreme ecchi theme? Because of its bad character designs. If you can overlook this con, this anime can impress you with its borderline fan service.

2: The Testament of Sister New Devil

The Testament of Sister New Devil follows Basara, who suddenly gets two new stepsisters when his dad remarries.

The catch is, they’re both hot demon girls, Mio and Maria! Mio is the future Demon Lord and everybody from the demon realm is after Mio’s overwhelming powers.

Basara and Mio’s care for each other leads anime to the most extreme ecchi content, which is even bizarre to talk about. Like there’s a pact ritual where they share essence, leading to sexy times.

When another busty childhood friend of Basara’s named Yuki shows up, things get even wilder. There are epic battles but also bath scenes and falling into boobs situations.

With all its wacky demon hijinks and harem vibes, this show delivers ecchi supernatural action and fantasy fulfillment with a captivating plot.

1: Redo of Healer

borderline hentai anime

I just wanna say one thing about this anime, its plot and characters are nothing like anime, even it shouldn’t be included in the ecchi genre. After witnessing its first episode, you will know why I am so certain about this statement.

Redo of Healer follows the protagonist Keyaru, a Hero who is disrespectfully abused by other Hero members.

After enduring pain, he goes back to get revenge on the people who abused him – but in really messed up ecchi ways! Like he turns the female knight who betrayed him into his sex slave through brainwashing and stuff.

He gathers a harem of women he abuses in similarly awful yet kinky ways. So this show is all about domination fantasies and extremely gratuitous content.

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