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Demonion: Gaiden

Alternative Titles

Japanese: デモニオン ~外伝~


Type: OVA
Episodes: 2
Status: Finished Airing
Aired: Nov 21, 2014 to Mar 27, 2015
Producers: White Bear
Licensors: None found, add some
Studios: None found, add some
Source: Visual novel
Genres: Hentai
Duration: 20 min. per ep.
Rating: Rx - Hentai


Score: 6.531 (scored by 730 users)
1 indicates a weighted score. Please note that 'Not yet aired' titles are excluded.
Ranked: N/A2
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #5300
Members: 2,267
Favorites: 7
Ranked N/APopularity #5300Members 2,267
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Episodes: /2


There once was a maou Astaroth who invaded the human kingdom, plunging the world into war. However, he was finally suppressed by a group of heroes who took his powers and sealed him deep underground. Two hundred years later, there were rumours that the seal was broken due to the recent shifts in the Earth’s crust and that the maou had been revived. Many confident adventurers descended on Astaroth’s underground labyrinth with the intention of defeating him and becoming famous. Little did they know that he had set out a trap for them…

(Source: Omochikaeri)


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Watase, Toshihiro
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Original Character Design
Shinkai, Kouki
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Original Creator

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More reviewsReviews

Nov 23, 2014
[This is a hentai, not for children]

This is written after only having seen the first episode, which just came out.

I get the feeling that it's just gonna get better because of the vibe the first episode gave me. Kind of an odd way of putting it, but yeah. I hope this show turns out well.

Story 7/10

Looks promising, I'll admit it was a little stale, but I believe it will pick up in future episodes.

Art 7/10

The animation is pretty good, but some background effects felt cheesy, water stuff in particular, you'll know when you see it.
I like the character art style. The girls are nicely drawn read more
I found this review Helpful


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Recent Forum Discussion

Poll: Demonion: Gaiden Episode 2 Discussion
Hentai - Mar 28, 2015
9 replies by Da_Lastaw »»
Aug 17, 12:38 AM
Poll: Demonion: Gaiden Episode 1 Discussion
ShanaFlame - Nov 23, 2014
11 replies by hentaishima »»
Feb 21, 2015 8:38 PM