Random
EN
Anime Name
Expand
Light
Currently watching Episode 1 Switch to alternate servers in case of error.
Gate Keepers 21

Gate Keepers 21

HD
SUB
OVA Full 30 min
Thirty-two years have passed since the initial defeat of the Invaders. A.E.G.I.S is all but dismantled now and has become an underground organization consisting of only a few Gate Keepers left to save humanity. One of the members, Ayane Isuzu, is sick of society as a whole, though she continues to defeat the Invaders out of spite for her father. Suddenly, she learns of the revival of Machine General (Kikai Shogun) and Devil Count (Akuma Hakushaku), but a mysterious ghost girl now accompanies them. It is up to Ayane and the remnants of A.E.G.I.S to stop them and save humanity once again.
Hianimes is a site to watch online anime like Gate Keepers 21 SUB online GoGoAnime, or you can even watch Gate Keepers 21 in HD quality just like KissAnime and 9Anime.
View detail

Comments

Anime Episode

Where to watch online anime? Watch Gate Keepers 21 online free on Hianimes? Right Here!

Recommended For You

SUB
EP 25/
Ookami To Koushinryou Merchant Meets The Wise Wolf

Ookami To Koushinryou Merchant Meets The Wise Wolf

25 min/ep EP 25/
SUB
EP 12/
Watashi No Shiawase Na Kekkon 2nd Season

Watashi No Shiawase Na Kekkon 2nd Season

25 min/ep EP 12/
SUB
EP 12/
Seiyuu Radio No Uraomote

Seiyuu Radio No Uraomote

25 min/ep EP 12/
SUB
EP 26/
Trillion Game

Trillion Game

25 min/ep EP 26/
SUB
EP 12/
Code Geass Dakkan No Roz

Code Geass Dakkan No Roz

25 min/ep EP 12/
SUB
EP 5/
Kimi Ni Todoke 3rd Season

Kimi Ni Todoke 3rd Season

25 min/ep EP 5/
SUB
EP 13/
Kusuriya No Hitorigoto 2nd Season

Kusuriya No Hitorigoto 2nd Season

25 min/ep EP 13/
SUB
EP 12/
Na Nare Hana Nare

Na Nare Hana Nare

25 min/ep EP 12/
SUB
EP 12/
Mushoku Tensei Ii Isekai Ittara Honki Dasu Part 2

Mushoku Tensei Ii Isekai Ittara Honki Dasu Part 2

25 min/ep EP 12/
SUB
EP 18/
Xiehou Ta De Shaonu Shidai

Xiehou Ta De Shaonu Shidai

25 min/ep EP 18/
SUB
EP 13/
Hibike Euphonium 3

Hibike Euphonium 3

25 min/ep EP 13/
SUB
EP 22/
Touhai Ura Rate Mahjong Touhairoku

Touhai Ura Rate Mahjong Touhairoku

25 min/ep EP 22/
SUB
EP 13/
Atri My Dear Moments

Atri My Dear Moments

25 min/ep EP 13/
SUB
EP 13/
Girls Band Cry

Girls Band Cry

25 min/ep EP 13/
SUB
EP 17/
Dead Dead Demons Dededede Destruction Ona

Dead Dead Demons Dededede Destruction Ona

25 min/ep EP 17/
SUB
EP 13/
Oshi No Ko 2nd Season

Oshi No Ko 2nd Season

25 min/ep EP 13/
SUB
EP 13/
Ooi Tonbo

Ooi Tonbo

25 min/ep EP 13/
SUB
EP 1/
Cocoon Aru Natsu No Shoujo Tachi Yori

Cocoon Aru Natsu No Shoujo Tachi Yori

25 min/ep EP 1/
SUB
EP 23/
Rurouni Kenshin Meiji Kenkaku Romantan Kyoto Douran

Rurouni Kenshin Meiji Kenkaku Romantan Kyoto Douran

25 min/ep EP 23/
SUB
EP 12/
Senpai Wa Otokonoko

Senpai Wa Otokonoko

25 min/ep EP 12/
SUB
EP 13/
Tonari No Youkai San

Tonari No Youkai San

25 min/ep EP 13/
SUB
EP 12/
Hana Wa Saku Shura No Gotoku

Hana Wa Saku Shura No Gotoku

25 min/ep EP 12/
SUB
EP 13/
Bang Dream Ave Mujica

Bang Dream Ave Mujica

25 min/ep EP 13/
SUB
EP 1/
Ashita Sekai Ga Owaru Toshitemo

Ashita Sekai Ga Owaru Toshitemo

25 min/ep EP 1/
SUB
EP 12/
Shy 2nd Season

Shy 2nd Season

25 min/ep EP 12/
SUB
EP 12/
Douse Koishite Shimaunda

Douse Koishite Shimaunda

25 min/ep EP 12/
SUB
EP 13/
Medalist

Medalist

25 min/ep EP 13/
SUB
EP 20/
Karasu Wa Aruji Wo Erabanai

Karasu Wa Aruji Wo Erabanai

25 min/ep EP 20/
SUB
EP 14/
Kami No Tou Ouji No Kikan

Kami No Tou Ouji No Kikan

25 min/ep EP 14/
SUB
EP 16/
Re Zero Kara Hajimeru Isekai Seikatsu 3rd Season

Re Zero Kara Hajimeru Isekai Seikatsu 3rd Season

25 min/ep EP 16/

Top Anime

Genres