15 [Similar Anime] Like Hundred

both are school, harem, military anime with a good amount of ecchi senses in both. both have political and family drama
differences
Hundred the main plot is the battle school little garden trained hundreds (people that can use a special crystals to manifest weapons and armor) to defeat alien attacks known as Savage the mc is extremely overpowered that agreed to attended the school to get medical treatment for his sister
IS the main plot in a slightly far of future the Infinite Stratos was created for deep space mission but those plans are put on hold the creator prevents these mechs from being used a tool of war and so the are used in a new sport so most likely they can me improve for their original mission of as tools of war. the IS is unique as only females can pilot them until the MC get one to activate for him and he sent to the IS school making him the only male on campus. while the main plot of hundred deal with fight the savages IS deal with a lone teen boy in a school full of women and girls, politic and family drama.

The two anime could basically be interchanged for one another, they really are That similar lol.

The story is kinda similar even the characters. It has mecha battles which is OK, I guess. Both shows have one male and many female harem type and ecchi is heavy.

The main characters enroll into a fancy school that practices some special ability's and they just happened to be surrounded by chicks with one of them being the flat chested/white haired/loli/roommate.
Main characters also both have a pointless tragic past.

In both anime people awaken a power to help them fight inter-dimensional beings and save the world from them. The main characters form a team to hunt more efficiently the inter-dimensional beings.

Both Animes involve life from space, with Hundred being a bit more ecchi, and Date being more romance. In Hundred, they fight aliens with technology and the mc uses the girls around him for assistance. In Date A Live, the girls are "aliens" themselves and it's the mc's job to tame them with his own abilities of winning a girl over. Both Anime use what happens in space as key plot points in the story.

Main Similarities:

Both are harem anime with a powerful main character and mysterious powers. Character development is basically the same and so is the ending. Both are enjoyable but could be much better if character development was a bit better. Nonetheless, I recommend both of them.

Both shows consist of characters using materialized weapons to kill alien invaders by destroying their cores. They also both have a locked away "patient 0" that has been changed in someway from their interaction with the alien invaders and researching this change is what allowed the characters to create the weapons they use to fight off the alien species.

Both Shuffle and Hundred are supernatural school based harem animes. Shuffle actually has different races and some (the gods and demons) have magic built up in their bodies, while Hundred just has people optimized to use the hundred weapons (each one is unique to that character). Both main characters don't really know which girl they want to choose from the beginning.

All the girls love the mc and he actually fights.

I've described Hundred as being like a Dr. Frankenstein creation between Buso Renkin and Kill la Kill; so If you liked Hundred (or weren't satisfied by it), try out Buso Renkin for a show that I believe to be the next step up. The idea of personality based weapons is explored more in Buso Renkin than it is in Hundred, along with more character development. However, don't watch this if what you liked about Hundred was the ecchi and harem aspects.

they both have a main character who is a boy and more superior than other. There are two main characters who are girls that love the boy and kind of fight over him. These series both have a thing that give them weapons and armor. The series both have mysterious life forms/monsters in Hundred it is savages but in Seiken Tsukai no World Break it is Metaphysicals. Hundred and Seiken Tsukai no World Break have simular genres.

They're both similar quality and easy to watch. If you liked one, you're probably the target audience for the other.

Well, they're very similar, school where students are specialized to fight supernatural creatures, battle missions, both MCs have special abilities, etc.