Isekai no Seikishi Monogatari

Kenshi Masaki has been kidnapped and brought to the world of Geminar by a mysterious group. To get back home, he agrees to help them assassinate the newly crowned empress of the Shtrayu Empire, Lashara Aasu XXVIII, using a giant robot called a Sacred Mechanoid.

As her army fights them off, Lashara takes note of Kenshi's abilities and demands that her attacker be captured alive, only to find out that the pilot is male which is extremely rare on Geminar. Believing it to be a waste to kill him, she makes Kenshi her attendant.

As the empress' new servant, Kenshi is required to accompany Lashara to the Holy Land, an academy where Sacred Mechanoid pilots hone their skills. His arrival attracts attention, but Kenshi is unaware that something sinister is brewing within the academy and it could plunge the entire world into war.

[Written by MAL Rewrite]

Masaki, Kenshi Main

Shimono, Hiro Japanese

Shurifon, Aura Main

Noda, Junko Japanese

Aasu XXVIII, Lashara Main

Yonezawa, Madoka Japanese

Furan, Kyaia Main

Kuwatani, Natsuko Japanese

Shume, Wahanly Main

Nakagawa, Rie Japanese

Nanadan VII, Maria Main

Saitou, Momoko Japanese

Po Chiina, Lithia Main

Oomura, Kana Japanese

Mea, Yukine Supporting

Sonozaki, Mie Japanese

Doll Supporting

Gotou, Mai Japanese

Furan, Mexiah Supporting

Tsunematsu, Ayumi Japanese

Cook, Justin Producer

Matsuzaki, Yoshiyuki Producer

Nagano, Toshiyuki Producer

Ueda, Yasuo Producer

Reviews

Dec 26, 2025

ObiSeanime

Recommended

the original Tenchi series was one of my first introductions to anime - and when I saw this War on Geminar series I thought it was going to be another series aligned with that storyline - however instead of our titular good boy Tenchi navigating the misadventures of his wild gang of overpowered lady pals we have an isekai'd version named Tenshi who is stuck in another world surrounded by a host of very powerful and capable pretty ladies. We have robot armor fights , we have a harem , we have a fantasy world , we have a big school , and central ... to it all we have Tenshi - probably the best boy ever who has mastered everything and impresses everyone at every opportunity. Self insert at will to feel good about yourself.

I really enjoyed this series because it has some decent animation - the characters are great and most of all it made me laugh a lot - like a lot. This series really doesn't take itself too serious - the pervy jokes and bits of almost-nudity are done tastefully enough to dodge the ecchi tag while also making absolute fun of itself as it happens .... I won't spoil the jokes you just have to watch the show to see what I mean ( " those guys really did do whatever they wanted " ) ...

of all the harem isekai out there this one stuck with me for some reason - I remember pretty much all the characters and what happened to them. Most important of all this show made me smile and laugh a lot. I smiled at the way it has no problem making fun of itself and how well it does that , I laughed at the ridiculous stuff that happens, I snorted milk out my nose the second Mexiah appeared naked in the cage - and pretty much every other scene she was in. I have watched this series at least five times - it's become one of those comfort shows I put on when I'm not really glued to the screen and just wanna hear something I like going on in the background. Despite watching this series multiple times I still have no idea how or why Tenshi is in/on this world and I kinda get the feeling that a season two would explain a lot that was left out - that or I really need to pay more attention to those last few episodes.


this series has much more t-n-a in it than the original Tenchi does so be forewarned - there are some episodes where the entire premise is based on adult themes and they carry over so if your kid loves the og Tenchi this may not be the show for them - yet. Let them get a little older and more perverted - then it'll be perfect.

I recommend this one - as an anime fan it made me laugh a lot because it made jokes about the whole genre and I like that kinda stuff.

Reviewer’s Rating: 8

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Dec 2, 2020

EpicTerror24

Mixed Feelings

Should I Watch? Depends on your taste but I would say No.

First things first, the story was not great and in my opinion, it's dull. I feel like the story needs something the Mc could lose or have some real backstory at the start so I can feel for the character Kenshi. Everyone else feels like empty shells following Kenshi and THE AMOUNT OF TIMES HES GIVEN PLOT ARMOUR! I wanted it to be good but with Kenshi doing everything and everyone having no backstory it makes them seem empty.
The villains are bad for no real reason and have no proper reasoning for it. ... If they had good villains then MAYBE Kenshi could have a reason to fight them off or something.
If you don't mind a story you can see from a mile away, boring characters with no backstory then this is good but for me it needs more. Its okay at best but it really doesn't talk about the charaters and why they are here. 5 out of 10 only held up by some fights and most of the art.

Reviewer’s Rating: 5

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Mar 12, 2022

Vaguelyweebish

Not Recommended

The original "Tenchi Muyo!" OVA series and extended television shows are known as something of a cult classic nowadays. Pioneering the infamous harem genre, they did a surprisingly good job at balancing science fiction elements and off-the-wall romantic comedy.

Therein lies what made the original series so memorable: They were actually FUNNY!

"Tenchi Muyo: War on Geminar" suffers from a painful identity crises. It wants to be a VERY heavy political drama while primarily focusing on uncomfortably awkward comedy that never measures up to the sharp wit of the originals, usually opting for fetish fuel (massages that give all women constant orgasms for several days straight!) or ... idiotic dialogue ("I heard that boys from other worlds like being called 'baby boy' by their female teacher." . . .🤨) that makes me wonder how these particular writers ever got hired for this project which apparently cost the equivalent of 35 million euros to produce.

The MC Kenchi is nothing like the original Tenchi--who is apparently his cousin, yet he's revealed to be an artificial lifeform??? While Tenchi was just your average, relatable everyman who was thrust into a role he had no other choice but to be a part of, Kenchi reeks of the musk of a modern self-insert protagonist, specifically of the genuine otaku variety. He's simultaneously an addleheaded moron who is infuriatingly gullible and will cry comical moe tears over the smallest insult while being unbelievably fit and agile and smart enough to come up with a genuinely clever war strategy at the drop of a hat. He's the kind of protagonist that makes you realize that virtually no planning went into any of the series, as his polarized personality is as dissonant as the series' tone and plot.

Aside from their unique designs, not many of the Big Brained Buckethead's potential consorts really stand out all that much. Some of them have some genuinely funny personality traits, but since these stereotypes are pretty much the only thing that define them aside from their obsession with the underage stud, I had little reason to root for any of them to breed with him. And yes, that's a curt way of putting it, but that's how male Sacred Mecha Masters are seen in this alternate world. A male with the ability to pilot a Mechanoid using the "magical" energy (which is known as "aho," a reference to the word which means "idiot" in "Photon: The Idiot Adventures"--so are they fighting with the power of stupidity? Apparently so.) that is actually science is so rare that their semen is sold on the black market, and they are basically sex slaves, thus literally every girl at least secretly wants to get in front of the altar with him to make some legal (?) Mechamasters with him. The only two that really stood out to me were Mexiah (edgy bisexual who apparently sleeps with her student girls! O_o) mainly for how great she looks in her teacher's uniform with her hair tied in that beautiful, curly ponytail; and Aura, mostly just because she's a Dark Elf--a particularly gorgeous one at that, and she has an extremely noble but gentle personality that makes her less irritating than most of the over-the-top tsundere, goudere, and himedere personalities of the rest of the girls. It's easy to see why she's the one character people know from the show: She actually feels like a real person! And her design is goddess-tier. That's the one thing people care about. . . .

For a harem comedy, the political plot is obviously shoehorned in in an attempt to give a reason for someone as unremarkably bland as Kenchi to have been transported to another planet. The animation quality takes a significant plunge during the stilted aerial mech fights, distracting me from the marvelous vistas of the fantasy landscape. The villains' motivations are all confusingly vague, and when the plot flips on its head midway through, there's a weird tonal dissonance where the awful comedy-focused soundtrack doesn't match the intensity of the situation (i.e.: a young woman in a leotard getting burned alive to show how dangerous the situation is to the sound of whimsical trumpets).

By the time the forcibly drawn-out last five episodes wrapped up the plot, I didn't care what new plot points which only added new holes had set up for a potential second season. I didn't care if any villains whose deaths were left ambiguous returned. The entire package was a confusing, boring mess that tested my patience until the very end. It's no surprise why the Director who helmed this disaster has never worked on another anime since. "Tenchi Muyo: War on Geminar" is a poorly written, unenjoyable failure that never knew how to integrate any of its themes or characters into the significantly more fascinating world. Aside from Aura's radiant beauty and the potential worldbuilding in a science-fantasy setting which has been done significantly better in other media, this is a dud that deserves to be forgotten with some of the worst schlock of the late 2000's.

Reviewer’s Rating: 2

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