A story that is so bad that it almost falls into the category of it so bad its good and would probably have achieved cult status as the most unintentionally hilarious Evangelion rip-off ever but the anime takes itself way too serious. I could see otaku's going around with T-shirts at Con's with Kanji that reads "I want you to ride in my mech Darling in the Franxx style". The thing i found the most hilarious is that the characters spend most of their time training with a mech that you operate by having your female partner in doggy-style position with controllers that come out of her hips but you cannot figure out what sex is until you find an old book on reproduction.

Although, I have to give this anime praise for having the best homoerotic lines of any sci-fi anime I have seen. "Like I said, we nines can be both stamens and pistils. Besides you put to much strain on your partner. No ordinary pistil could handle it. Anyway give me taste of what you can do! Actually this feels just like... Of course it does. Where Iota's clones."