From the first episode, I could give you a Hundred reasons for concerns. I will not waste my time and yours so i'll only mention some. As far as I see it either Asterisk War is copying this or the other way round.

1-His name is Hayato. Bruh. Sound familiar?
2-Typical top person challenges new student.
3-Denser than dense MC can not realize Emile is a girl.
4-This MC more oblivious than Takashi Kosuda from B Gata H Kei
5-Sad flashback that is not sad
6-Stupid ass fighting uniforms. Is this combat or dance class?
7-What is Emile's point for acting like a boy?
8-Generic asshole Student Council President
9-Girls hair look like some turkey twizzlers ngl.
10-Guy joins school with more power than anyone cliche
11-Why are they wearing leotards give them some actual armor so they can take hits.
12-Dude get a plaster stop sensually sucking thumbs.
13-Spent 21mins of my life not to see the fight between the two.
14-Obvious AI introduction to foreshadow it turning on them
15-Outro was literally a circle spinning around...
16-School uniforms giving of Anti Magic 35th Test Platoon vibes.
17-Why does the MC always get some huge sword. Guess its badass...

Apart from that the show has some merits as unlike Asterisk War, they have point for having schools like this. In this they are trying to fight Savages. Savages? Really? But in Asterisk War they're just doing it because why not. This needs to show its difference so it doesn't become known as a copy or a cliche anime.

Once again hopeful but worried.

EDIT:After watching the show a bit more I have decide to change the rating of this show. I want Hundred to played everywhere I'm not living as it is shown to be a shoddily produced show with little to no actual interesting plots or characters.

To start things off the character are 2 Dimensional as they show no real development and I cant help but cringe at the girls attempts to show their affection for Hayato. First off you have Emile, who is so forceful and blatant that I wouldn't care if she ended up alone or dead. Then you have the idol, who is boring and bland I forgot her name. Throughout the episodes she is in, she graces us with her presence by bringing up a sad backstory which I could not give one less shit about along with a corny song that the animators couldn't even bother to animate her lips moving. Lastly you have the big breasted Claire whose only real achievement is having the talent to be saved by the MC every time.

I said after the first episode that this show could have copied Asterisk War, Infinite Stratos etc. This suspicion was recently made true by the nice folks over at Production IMS. Lets go through them shall we.

Similarities in Asterisk War and Hundred

-Princess
-Annoying princess's maid/servant
-Singer with pink hair
-MC challenged to duel on first day
-Boob grab

And the list goes on....

Another thing I wanted to talk about was the gap in animation between the two. Asterisk War is done by A1 Pictures who do more that a solid job on animation when it comes to fights or just conversation. Hundred on the other hand has some extremely bad animation at some parts and it starts to feel like IMS did this on a shoestring budget. The fight scenes involve a slight movement along with a still frames. They also implement the occasional close up shot with the background blurred like a noise gradient on photoshop. It is then slid in the direction of the characters movements to give the appearance that there is actually something going on. If only that was the case. I don't want to bring up the horrendous scene where the idol was flying through the air singing, without moving her lips!

FINAL VERDICT

This show is not even that bad, its worse. I advise you if your going to give this show a chance, don't. All jokes aside don't watch it if after episode 3 your still unsure. This show is like an infection that should be treated as soon as possible. I recommend disinfectant or you could try Re:Zero, a gripping story that will have you actually liking the characters. The only reason I watch this show is because I like the feeling of being near death. I also do it to laugh at the cliche within the series and to update my review to help any unfortunate souls that stumble across this anime. To conclude, if you like it, you like it. If you don't, then you're probably sane.

SIDENOTE: Come on IMS step up your game. Lets try and get this to a 1 star by the end of the season.

Another anime about kids who go to a fighting school in order to beat some random monsters that came out of nowhere, of course they need to wear incredibly tight and exposing fight suits because its cliche and fan service, why didn't they just do it properly like evagelion where it was at least believable. Main character is OP before even entering the school cliche, blonde pig tail hairstyle character is spoiled girl in high power position. The cut-scene at the start I'm guessing was meant to be sad but included characters that we literally just met and didn't care about, also showing us basically nothing of importance so might as well have not been shown at all.

Honestly, I didn't even get all the way through the episode cause i got so irritated by hearing them say each others full names so man times within 2 minutes meanwhile having a several minute long talk in a hall about if two people should be kicked out or not from this military school for being late on the first day. (yes they should be) Keep in mind we don't know the two characters that are in trouble either so have no reason to care about if they stay in or not as well.

The point where I finally closed the episode was the minute she said "I challenge you to a duel" because why not... This duel has no reason to take place other than because the show needs to let us know how strong the main character is, the blondie doesn't need to win the duel to expel them because that's just how her powerful position in the school works. Unfortunately I wont be watching it but I'm sure a lot of people will be cause asteriks war was successful despite having even more obvious cliche characters and issues than this does.

(All first impressions, ill go back to watch the series later to finally decide if its worth it or not)

I've gotta say I was more satisfied with the opening of Hundred then I had anticipated. At a glance it is yet another Action/School/Harem anime with a lot of visual similarities to other recent works in the genre. It's a weird mix and Asterisk War meets Infinite Stratos characters versus Gastrea from Black Bullet. The story was easy to jump into, mostly because it takes the standard progression of; inexplicably powerful male lead A transfers to battle school only to dual top yet slight less powerful female B. Then continuing on, powering through the story line, acquiring the thoughts and feelings of all supporting characters blah dee blah dee blah. A lot could be said, but still a little too early. Animation is very good, which seems more and more to be the standard nowadays.

All in All, comfortably familiar with a hint of darkness, I guess I'm in.
4 Stars and cautiously optimistic.

I liked the Hundred but its starts off with a female posing like a man not sure what that is about. and i believe that the main character has far more talent than he is aware of. seems like a classic case of hero ignorance. And by this i mean that he seems to know how to do things with his weapons before he has even learned how much like the hero in many other anime. And there is a back story with the dream he keeps having i wonder if something is up with that girl he was with in the dream. he doesn't seems to know her yet i think he does. Anyway i don't like that it ended on a cliff hanger at the end of episode 1. But i will definitely keep watching this anime for a while to see if he gets a harem going or something.

Besides the main characters obliviousness in regards to "Emile" the quality of the voice actors and the design of the Hundred equipment the characters use is on the higher end of similar series in recent memory. There doesn't seem to be any deviation from the typical Harem-Action plot that we often times see but this rendition appears to have a good team working behind it and should prove to be entertaining in the long run.

the white haired chick our MC thinks is a dude who knows a lot about his past that is the main point of intrigue and supposed to be an important thing to the story, is very clearly shown in the opening flashback. not even a spoiler as its so blatantly shown in the opening. i mean really broh? god damn tits on a fat kid. everything about this show, from the GOD AWFUL exposition to the generic as all hell everything else, its just bad. white hair chick aint even as hot as the white hair chicks also the least attractive white hair chick in all the other school harem anime's to come out recently, and most blandest. i mean really, the girls are just so GOD DAMN BLAND in this anime. sweet mother of stepping on leggos this show is bad. its physically painful.

animation is really... puppety? i dont know how to describe it the characters just dont move right.

It's basically every post-apocalyptic magic-knight academy anime. I don't expect anything to be 100% original, but for it to completely lack that was astounding. I mean I was a little surprised that the girl he walked in on in the middle of dressing wasn't the same one who decided to have a pointless battle after giving unreasonable demands. If you've watched Chivalry of a Failed Knight, Anti-Magic Academy, or Asterisk War then you've already seen this anime. It's like they remade Asterisk War but decided to snatch a few design / concepts from Ladies vs Butlers.

Full disclosure: this is a first episode review. So lets get right to it. The best primer I can give you is a straight description of the anime's opening moments.

The anime starts with a graphically violent but vague flashback sequence that gives us a glimpse into the main character's shared history with a mysterious young girl. It's strongly insinuated that the girl's destiny is somehow intertwined with that of the dark power the protagonists are fighting. No doubt, as the series progresses, he will encounter this girl, earn her trust and love, and have to rescue her from a terrible fate.

He then ends up at school which trains those who share his type of special abilities. Very quickly, he becomes the subject of wonder from his peers. He doesn't appreciate their admiration, though. Despite being among the strongest people in the school, even as a beginner, he's humble and tries to avoid notice.

The first episode then introduces a number of characters. First, he meets a series of minor supporting female characters who will likely serve as damsels in the early episodes to establish his heroism, and later as "emotional support" cheerleaders in his final battles. He also meets a handsome male protagonist who will possibly alternate between being an ally and a male foil to establish the protagonist's "unwanted" alpha male status. He also meets an awkward but eager girl who he will have to shepherd into emotional resolution with his hackneyed wisdom. And finally, he encounters an angry tsundere who's a leader among the students and among the strongest at the school; she refuses to accept him, challenging him to a duel.

Is it cliche? I don't know; I haven't even started talking about this anime yet. Everything I wrote above is a plot description of the beginning of another anime entirely. Can you guess which one? No, you can't. Somehow, through amazing coincidence, this synopsis not only exactly fits this anime but several others. How many can you think of?

This anime does have some wonderful unique features, though. There's a "male protagonist" who is transparently a girl in disguise, in both her voice acting, hair, demeanor, and facial design. Take a guess as to whether she's the mysterious girl in the opening sequence. In fact, the only reason we even know that we're /supposed/ to think she's a guy is because the series repeatedly states it explicitly via dialogue. Why not just make it less obvious, you ask? There's a reason. It's not an oversight. It's because, like every other series in this genre, narrative consistency is secondary to this being a straight male power fantasy, so they can't add anything remotely resembling a homoerotic note. Don't worry. They probably won't even let him be stupid about it. I'm fairly sure the protagonist will eventually have a, "I've known all along. I was only playing along for your sake," moment.

Final verdict: is this worth watching? Sure, if all you want is moe battle waifus in skintight outfits. But even only by those criteria, frankly, this anime is subpar. The narrative consistency is low even by the low standards of this genre. The animation is mediocre, at best, a pretty serious sin for a genre in which 50% of the draw is the fight sequences. And the character design is hamfisted and tropey, with almost no unique flourishes, another sin if your intended audience (hardcore male otaku, for a series like this) really wants more moe.

I rarely do this, but in the spirit of writing a proper review, if you actually enjoy this genre, just go watch Asterisk War instead. Yes, I rated that series 1 star too. But that show, at the very least, has quality animation in its best moments, has interesting visual design for some of its characters, and the story is not completely transparent. That show is a better example of this genre, and it's actually running its second season during this same season. This show, barring some miraculous reversal in quality over its run, is one of the worse examples.

Review based upon episode 1.

This is exactly what I expected. Another mediocre action harem show churned out by the machine. Use formula: add protagonist with tragic back story, add boobs, make boobs magnetically attracted to protagonist, add plot of some sort, send to air. There was nothing terribly wrong with this but there wasn't anything special about it either. So far there isn't much to go on about the characters but they'll probably follow some sort of archetype.

If you like this sort of thing it's probably right up your alley. Otherwise stay away.