Kazuki Yotsuga is able to see things that others can't; in his visions, giant robots battle it out in the streets, causing massive damage in their wake. Though his visions have made him an outcast from the rest of his peers, they have attracted the attention of Ken Sanada – a physicist who believes Kazuki’s visions are a gateway into a parallel world! He places Kazuki into one of his inventions and accidentally sends him to the parallel world in his visions, where he finds himself in the middle of a war for control of the world! Kazuki must now become a pilot of one of the robots in order to join the fight for peace, all the while trying to find his way back to his own world…
In the future, a devastating event known as Second Impact has destroyed Tokyo as we know it, giving rise to Tokyo III - a city under siege by mysterious lifeforms known only as Angels. Mankind's only line of defense are the Evangelions, a set man-made machines piloted by a trio of fourteen year-old teenagers, Rei, Shinji, and Asuka. The fate of Japan and the entire world now lie with these three children, though they might not have the power to save the most important thing of all: each other.
Both of these titles are very similar; a male main character is the only hope of winning against his enemies, and is surrounded by girls. The only real difference is that Evangelion is a lot darker than Dual.
For me, Dual is very similar to NGE. The beginning of Dual is very similar to NGE (as well as the ending), and the robot designs are also similar. Dual is far less complicated to understand than NGE, and I liked that it didn't have any religious comparisons. If you liked one try the other. :)
NGE and dual are both quite similar storywise. In both Anime the main character is thrown into the middle of a war, where he becomes the only hope of winning. The main diference is that Dual is much lighter on the emotional and story levels than NGE.
Both anime are very similair with both Mechs as Pilots, in both series the main character, a Guy doesn't want to fight, but only ride the mechs. then we have one girl who is emotionless and learning. and a girl who says what she thinks, and still trying to dodge a lot of questions. the mechs also look similair in both anime
Dual! Parallel Trouble Adventures takes a lot of elements from Neon Genesis Evangelion, but replaces the drama with a harem. Well it is a post-NGE anime and it shows a lot. The characters in Dual! Parallel Trouble Adventures are poorly written and so is the plot, nonetheless you might want to check one of those series if you've already seen the other.
Ever been mistaken for a member of the opposite sex? For Makoto, this embarassing situation becomes reality when he and two classmates are inadvertently transported to a magical world full of castles, royalty, and giant armored bugs. There, he is mistaken for Fatora, a missing princess, and quickly becomes entangled in a seven day quest to find her, all the while fending off female advances and trying to clear his name!
If you watched only one of these two animes, Dual! or El-Hazard. There is something wrong with you...
Nah just joking! Both animes are really really nice harem animes if you looking out for a similiar anime than make sure you catch the other one. A little fighting here and there but 10 points for the harem!
Both series can be accurately summed up as, "Boy falls into an alternate world and has zany adventures. Add slightly perverted sense of humor to taste." They're similar enough in both tone and style, so fans of one will probably enjoy the other.
Ayato Kamina may seem like an average boy in a devastated world, but after being captured by TERRA, a military organization set on saving the world from the Mu, an alien race set on "tuning" the world, he realizes he is an instrument in deciding the fate of humanity and piloting RahXephon. Not only is Ayato the only person who can control the mecha, but he also has a terrible fate of his own. Holding onto memories of his old life and grasping to keep his own humanity, he must struggle in this new world and realize his true potential with RahXephon.
Rahxephon and Dual! Parallel Trouble adventures are both outstanding examples of the harem comedy genre combined with secondary mecha/war elements. Both Ayato of RX and Kazuki of Dual are fairly likeable male leads who aren't quite as wimpy as similar characters in other shows. RX and Dual also feature a diverse cast of female characters, with an assortment of appearances and personality types. If you can find a girl to like in one show, you can find a girl to like in the other.
Both RahXephon and Dual! Parallel Trouble Adventures are post-NGE series. Both of them a lot of elements from Neon Genesis Evangelion and because of that both of them resemble each other. Dual! Parallel Trouble Adventures has a harem going on, on the other hand RahXephon has only a hint of that. While both series are lighter on drama than Neon Genesis Evangelion, RahXephon has considerably more drama than Dual! Parallel Trouble Adventures (which lacks it almost completely). Also, RahXephon has way better written story and characters, though due to strong similarities between those series you might still want to check one if you've seen the other one.
If you like Dual or Isekai No Seikishi Monogatari's style then you'll likely love the other story as well. Both have a similar style of storytelling (a mix of mecha fights and school interactions). Both series are from the same creator (Masaki Kajishima) and the actual plotlines, although in located different settings, share multiple similarities (females piloting mechs and a somewhat shy protagonist).
Dual! and Isekai No Seikishi Monogatari share a lot of the same traits, both contain a male protaganist surrounded by females, in a school like setting with Giant Mechs, both were created by the same person (Masaki Kajishima), so the similarities are striking
All in All If you like one, You're sure to like the other
Both shows center on a guy who gets sucked into a parallel world,where he becomes the only guy to pilot giant mecha which are normally piloted exclusively by women.
In a far and distant future, men and women have become mortal enemies. Each living on seperate planets, an interstellar war is being fought between the two very different peoples. Hibiki, a mere 3rd class worker, finds himself in the middle of a huge space battle, facing the nemesis of mankind: Womankind!
Mecha action, harem hijinks, and a little perverted humor await in either of these two shows. Both tend toward the silly more often than the serious, but are able to hit with dramatic impact when it counts.