15 [Similar Anime] Like The Testament of Sister New Devil

At first, the premise of these shows might be a bit hard to swallow: hot demon chick meets boy, boy staves off evil, rescues the girl, and somehow collects a harem of girls in his abode in the process. The female leads of DxD and Shinmai Maou are in need of great support due to various circumstances, but Issei and Basara are able to take on these massive undertakings and come through for Rias and Mio.

Simply put, High School DxD is basically Shinmai Maou no Testament minus the borderline hentai. There is plenty of "plot" to be seen in both and the similarities can be drawn up from the same setting (demons residing in earth) to identical primary love interest (redhead demon).

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.

Suddenly, the main character, who happens to be a powerful hero, adopts the daughter of the Demon Lord and, why not, a whole harem. Somebody should tell them that you're not supposed to fantasize about your sister.

Both are very similar. The protagonists look almost identical. The main female is a devil. There are Angels, Demons, and a 'Hero' faction. Both are harems, both revolve around the female lead's heir-to-leadership status. There are minor plot differences, but the jist is very similar.

Incredibly similar in how both are ecchi/fan service supernatural anime's with demon characters having begun to live in the human world due to certain [though different] circumstances. There's also a female tsundere MC with red hair in both.

Plenty of plot, ez harem, pretty cool fighting, KURUMI IS EVERYWHERE, Plenty of plot, Mc is boi, Plenty of episodes, Lots of plot.

Not exactly the same but is an ecchi and has a decent amount of plot in it. So you went get lost in the fanservice and enjoy the anime. I would say trinity seven has much more plot tho :) but it will definetly help you get your ecchi dose :P.

Similarities:
•Both of the anime plot is somewhat similar.
•Similar feel and setting.
•The idea of demons and heroes are present in both anime.
•The male protagonist are very strong.
•Similar genres.
•About 90% of the female cast has a thing for the main character.
•Both anime are filled with fan service (though Shinmai Maou is more extreme when it comes to this).

The main character for both shows is a former hero protecting the daughter of a fallen Demon Lord. Both shows have a decent amount nudity and action although Testament is a lot more serious compared to the comedic nature of Yuushibu.

-Boy with super powers.
-His power increases thanks to his harem.
-Romance between the protagonist boy and the protagonist girl.
-There is a faction of heroes too.

if you love watching hentai, but want to watch it in tv series style. You're gonna love to marathon this two series. after "shinmai maou testament" try "to love ru".
Both series focus on fan service instead of the story. :D enjoy.

Similarities:

- hardcore demon ecchi

For mature audiences only. They are a bit different in storytelling but similar in their own way. Both settings are in highschool.

Both are ecchi, SW is reverse harem and SMNT is harem. They are about demons, angels/heroes and gods.