10 Most Extreme Ecchi Anime That Push Boundries Beyond

Extreme ecchi anime pushes 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.

(The 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 their 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 sexual theme and explicit moments, it stands out as one of the echiest anime with a lot of fan service.

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.

This anime was aired in the summer of 2020 by a renowned studio, “Project No. 9,” so sit tightly to enjoy the pervy scenes with admirable animations and alluring 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 the Seven Mortal Sins. Her vengeful ambitions 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 fan service, you’re definitely going to 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 2008, this extreme Ecchi anime allures the 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 normal high school.

Their normal lives turned upside down when they rescued a silver-haired, injured boy named Alexander Nikolaevich, who is Qwaser. “Qwasers are people who can control elements like iron with the power of breastfeeding.”

Of course, there’s tons of breastfeeding fan service as Mafuyu takes on rival Qwasers. This wild action series really milks the 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 a poor dude, Hino Akiharu, who signs up to go learn how to be a butler. But, of course, things get crazy right away.

Some hilariously lewd 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!

5: Kiss X Sis

Kiss X Sis follows a guy named Keita who suddenly gets two hot older step-sisters when his dad remarries. 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.

There’s a lot of inappropriate kissing, bathing together, and 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 it still has some plot and a balance of comedy, romance, and sensuality.

4: HighSchool DXD

borderline ecchi anime

Highschool DxD is the classic Ecchi anime 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, shredding 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 and 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.

Why have I 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 extremely dirty jokes.

2: The Testament of Sister New Devil

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

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 the anime to the most extreme Ecchi content, which is even bizarre to talk about. 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 boob situations.

1: Redo of Healer

borderline hentai anime

I just want to say one thing about this anime: its plot and characters are nothing like anime, even though 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 Party members.

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

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