In the year 1939 an unknown enemy called the Neuroi appeared. Their purpose is unclear and origin is unknown, but they attack and destroy any signs of human civilization they come across. Because conventional weapons are useless against them, humanity developed a striker unit known as the Strike Witches to combat the Neuroi. Miyafuji Yoshika is a girl with exceptional healing power but lacks control; she has been scouted to join the Strike Witches and fight the Neuroi, but all she wants to do is take over her family clinic. After witnessing an attack by the Neuroi on her way to find out if her father is still alive, Miyafuji resolves herself to fight for and protect the people around her. Who or what are the Neuroi and what do they want?
Kanata Sorami, a young Private in the army, arrives in Seize to serve in the Clocktower Fortress and learn the trumpet under the tutelage of Master Sergeant Rio Kazumiya. Though peace hangs uneasily over the world, Kanata finds a relaxing routine of laundry, shopping, and trumpet practice greets her at her new post instead of brutal drilling and discipline. With help from the other members of the all-female 1121st Platoon, Kanata finds her place in the bustling city, bringing joy and humor to the war-weary residents while learning a great deal about the world.
Both anime series are women-military based, even tho there are not many (if there even are) fights on Sora no Woto. The characters have lots of similarities, without the ecchi part on Strike Witches, and everyone learns to work together even when there are internal problems.
You could summarize with this formula:
"Sora no Woto = Strike Witches + K-ON! Art and Moe - (Magic + Ecchi)"
"Strike Witches = Sora no Woto + Magic + Ecchi - (Music + Moe)"
Soranowoto and Strike Witches certainly share a similar premise (a bunch of girls in a castle fortress in the army) and a similar aesthetic (European Stylized setting, Early 20th century technology with a few futuristic anachronisms), but the most important thing they have in common are their rather similar characters and the interactions between them.
They share the basic idea of a young girl who joins the army for some reason other than to fight, and who is taken under the wing of an older, dark-haired role model, who helps her along until she can fight for herself, whatever her battle may be. The daily life in their respective bases are also similarly wacky and free, except of course when duty calls.
Soranowoto makes use of the newer "K-On style" character design model (some say this was actually pioneered by Kannagi, but that's another story...), therefore focusing on the moe aspect, whereas Strike Witches is famously ecchi, with every scene containing several panty shots.
Strike Witches TV and So-Ra-No-Wo-To share the story of a female heroine that inadvertedly helps prevent a disastrous war. The protagonists are both rather clumsy and inept at first, but through the anime we see their respective growth, and these similarities will ensure that if you liked one you will like the other.
These anime are basically the same but strike witches adds in some fanservice and it a little more out there with it's plot. If you like cute girls that are the only ones fit for the job check either of these anime out.
Each of these series focus around young moe girls fighting for their country in a large scale war. Strike Witches is, however, much more ecchi.
Mysterious force: check.
Girls in almost no clothes: check.
Girls being the only ones able to fight in mecha like things (for the most part): check.
If these are the reasons you are watching one of these series, go check out the other.
If you liked one of these then you may like the other because in both series the main pilots of these rather special equipment can only be piloted by women, though in Infinite Stratos the male lead is the only guy capable of also piloting one of these units. Also in both cases the outfits the girls wear are rather no existent or at least missing a few items. Though Strike Witches deals more with a larger war that is going on and Infinite Stratos is for the most part about people going to a special school they both still feel somewhat similar.
Both shows are about girls who operate special girl-only mechs. Each of the girls represents a stereotype of her respective country. The enemy in each is a mystery, and there is a strong current of international intrigue in each. Both are loaded with delicious ecchi.
Infinite Stratos is a harem comedy while Strike Witches is more about building friendships. Both have great plots and battle sequences, and many of the characters have almost direct parallels. If you loved either one, you'll certainly love its counterpart. Both are excellent.
In the not-too-distant future, Earth was attacked by mysterious beings and before long over a third of the world's population was destroyed. Even after bringing to bear its full, united military strength, humanity was unable to repel the assailants and forced into using weapons of mass destruction. This was successful, but the war and its conclusion resulted in the deaths of a crushing percentage of all fighting-aged males, and Antarctica being melted, causing much of the Earth's land to sink underwater. Years later, three young girls - Otoha, a headstrong country girl; Karen, a technical genius; and the highly-disciplined and strong-willed Eika - are being trained to pilot Sonic Divers, weapons being developed lest humanity be caught off-guard once again.
Both of these anime involve little girls saving the world from monster invaders using some special power only they have. Very similar plot-wise, if you liked one, you'll probably like the other.
Both shows have pretty much the same plot; young girls flying around fighting monsters. As such, if you enjoyed one, you'll most likely enjoy the other.
They have much in common and are exiting to watch! They are both fighting an unknown enemy. Strike Witcches is timed in World War 2, but Sky Girls are more in our own time line.
Funko, Shigu, Eru and Ichiroku seem to be typical school girls on the surface, but they're actually powerful, dangerous guns that must be treated with care and respect! Together, they attend Seishou Academy, a special place where not only are all of the students guns, the teachers are as well. That is, except for one new educator who arrives, unaware of the crazy, dangerous times that lie ahead!
These anime are basically the same. Lots of fanservice, comedy and strange "plots". If you like cute girls that are the only ones fit for the job check either of these anime out.
Very similar, in terms of characters, all sorts of guns, and transforming. If you like Upotte!! you will definitely like Strike Witches, or vice versa.
Strike Witches is about girls from different countries who personify different airplanes. Upotte is about girls from different countries who personify different guns. Add in a healthy dose of ecchi and light violence, and you'll find that these two are right in the same vein.
Henrietta is a young girl who works for a "welfare group" that does the government's dirty work. Cybernetically-enhanced and specially-trained, she is one of a group of elite hit-girls, remorseless killers with no memories of their past. Jose, her partner, has taken care of her since she was brought into the organization following the murder of her family, and struggles between his affection for her, and his opposing duty to his employer. But, time is running out.. for with each bullet they fire, Henrietta and the other girls lose a little more of their humanity.
In both series, some young girls of various ages are trained and supervised by over graded members of an association for which they work for, in order to fight against a common ennemy. (Terrorists in Gunslinger Girl and Neuroi in Strike Witches.) In each of the series, the girls fight using overpowered abilities that they gained due either to their modified body (cyborg like...) in Gunslinger Girl or by using their magic power to operate "striker units" which it's the case in Strike Witches.