15 [Similar Anime] Like Hybrid x Heart Magias Academy Ataraxia

Both main characters start out as decent gentlemen, with honest and sincere intentions. Both of them end up involved in lots of ecchi which is required/essential for the plot. Both series are heavily focused on the nudity-fanservice, which can go pretty much all out. Both main characters actually are useful in fights/major events (in most ecchi harem trash series the OP just stands there whining whenever something big happens), lots of other things in common, but I will leave that for you to find out
As for the differences, Shinmai’s MC true powers are shown pretty early own and pretty quick rises to the OP badass character we all known from shounen, whereas HxH’s is pretty much a wimp early on. His potential is occasionally shown and foreshadowed, but he is mostly displayed as a catalyst for the female cast. Another difference is of course the setting. Shinmai is set in a similar world as the present, with the addition of demons and fictional races, whereas HxH is more of a futuristic mecha. One might argue Shinmai has more plot and story development, but the sequal of HxH (if we ever get one) might make up for it.

Similarities:

The story is kinda similar even the characters. It has mecha battles which is OK, I guess. Both shows have one male and many female harem type and ecchi is heavy.

Both series have the central premise of super powered individuals fueling their abilities by erotic bonding with female partners. The main difference is that Masou Gakuen HxH is a harem series in which the protagonist is the one who powers up his Heart x Hybrid teammates, while in Seikon no Qwaser the qwasers draw their power -from- girls, and most qwasers are paired off in groups of two (there is a lot shuffling of partners between characters and the protagonist has multiple love interests, but in the strictest sense Seikon no Qwaser isn't a harem anime). They also differ in the respect that Masou Gakuen HxH is mainly a futuristic science fiction series and Seikon no Qwaser is an urban fantasy, but both works blend science fiction and fantasy tropes in their worldbuilding.

Both are harem and comedy anime, and the main character in both anime did the ecchi things to the girls.

Do you like watching hentai? Do you dislike going to sketchy hentai websites? Then these anime are perfect for you. These anime are borderline hentai, meaning they have the ability to get you hard. You can also find them on 'safe' anime streaming websites. Meaning you don't have to worry about getting viruses from sketchy hentai websites. Hope this helps :)

Post apocalyptic + bewbs + harem + hard-ecchi
As simple.
Enjoy.

While one is an romance and other is an harem/ecchi, both still have some things in common

perfect ecchi anime for ecchi fans
not meant for self-righteous purist fans
enjoy the titties and nipples.

In both Valkyrie Drive and Masou Gakuen, the main ladies need to orgasm to unlock their special powers. Not only do both shows contain an overwhelming majority of females, nudity, and fanservice, the soundtrack and ending song are amazing.

They both have the same harem and action based genre, except that Shinmai Maou was more on the supernatural and demons, while HxH is more on sci-fi and mecha. But a little reminder they also both shre the same amount of racy ecchi, so view it at your own discretion.

In both anime the main character is despised because they are considered weak in the eyes of others. Likewise both story set in a magic/modern world and the facts are developed in a magic academy.

They Both Have Sci-Fi Fantasy
They Both Have A Lot Of Female Characters And Only 1 Male
They Both Have Similar Feeling When You Watch Them And
Full Of Beautiful Animation And Design

Both are hardcore ecchi without being outright hentai (if you watch the uncensored versions, which is 100% recommended). The fanservice isn't softcore like pantyshots, but actually does MC on harem girl or girl on girl physical action.
Plotline for both is moreso secondary whereas the (very hot) interactions between characters is moreso the focus.
That being said, the MC for each one is very typical - caring yet indecisive. But you shouldn't be watching these types of shows for the MC anyway, but for the girls.
If you want something that'll get you aroused, either one of these does the trick nicely (and the character designs are for the most part, high school age or above).

The same plot where group of youngsters are fighting inter-dimensional beings that threaten the earth, however, while one is based on a game and has a "GP" rating, the other one is rated "R" and not for kids, but for big guys who doesn't mind a little bit of something in it........know what I'm saying?