The Gandalfr runes are responsible for Louise and Saito's Double Standard: Abuse, Female on MaleNot only do the runes make Saito have feelings for Louise and see her only in a good light, but that they make Louise have feelings for Saito as well. Part of why she lashes out so much is that she's being brainwashed into loving him as well, and is subconsciously attempting to fight it.
Louise's spells have the side effect of making people stupid.This explains why:
Derflingher is a ZanpakutouWhen Saito starts using it to absorb magic spells, that's because he just figured out how to release it's shikai form.
Saito is Keitaro Urashima's cousinThey both have similar superpowers: magical resistance to the Groin Attack and Megaton Punch. Both are attracted to violent Tsunderes.
Saito is a masochistBack on Earth, he never had a girlfriend for too long because they ran away when he told them about his fetish. He doesn't tell Louise because he knows that if he does, she might stop.
Semi-confirmed in the the 8th light novel (according to Baka-Tsuki translations, at least), with Saito's dream:
Tabitha remained expressionless, but like a machine-gun she spat out a string of words:
“Can’t find a boyfriend? Mind your own business! Stuck between the maid and the boob-less mage, you have no right to talk about me. Someone like you, all you need to see is the princess, the village girl or elder sister with big breasts and you instantly have that “look”, really a mess. Then you will say ‘no no, I can’t do this kind of thing, because I am from another world, so I cannot support your feelings.’ But while you talk, your body doesn’t react the same way.”
“You, You,” Saito’s head became red as a tomato.
“A person like you would seriously annoy them both, you make them want to come after you with violence.”
Saito looked at Tabitha’s height and replied, “You, you little kid, don’t talk so spirited like that.”
The girl’s was a head shorter than Louise, but Tabitha’s expression remained unchanged, and added, “Who is a kid? You are the real kid! A brainless person like you who tries to step into two ships with one foot, you are ten years too early!”
Saito suddenly curled into a ball aboard the wind dragon. He had apparently been kicked in the groin by Tabitha. Then Tabitha followed it with a straight kick to Saito’s face.
“I should keep you as a pet.”
“What are you talking about? Aren't you very happy? You like it, don't you? When a loli dominates you. It is written all over your face!”
Other items from our world end up in TristainThe people in Tristain, when they do laundry, end up with extra matches to their socks. When they look for their keys, they find extras. Nobody in Tristain makes wallets, because it's easier to find them lying on the ground.
Halkeginia is just a continent that is in reality part of Nirn.The moons looks exactly like the moons of Tamriel, which could be a clue. And because it would be cool. Look deep into your hearts, you know it's true.
Zero no Tsukaima's Holy Land is still Israel/Palestine.Consequently, Brimir is not Magic Jesus, he's Magic Moses. We don't know how pimpin' Brimir was, else he'd be Magic Abraham. Brimi... Avram... crap.
“Brimir is a god, I guess. Everyone, in Founder Brimir’s presence… starts saying prayers.”
“Idiot. He is not a god. Brimir was a free person. No, not much… he was God’s spokesman… The nearest entity to it… I think.”
“A great person anyway.”
“That is right.”
“Is this whole mess because this great guys' hometown was taken over by elves?”This goes with the theory that time passes in Zn T Earth at the same rate as IRL Earth.
The Magic Academy knew from the very begining the Louise was a Void MageThey kept it secret because 1) Without the Gandalfr she could not use her abilities anyway and 2) They felt that letting her struggle with ordinary magic would give her the humilty to use her powers responsibly when the time finally did come.
Siesta is a ninjaBecause she's 1/4 Japanese, courtesy of her grandfather, and because she's a maid. And as we know, all Japanese maids are ninjas. Gramps was actually Japanese special forces in addition to being a navy pilot (just go with it) and when he got stranded in Tristain, he decided to pass his skills on to the next generation to make sure his family would have some defense against these uptight "noble" folks. Siesta is very good about concealing her skills, so good in fact that she looked just like a Damsel in Distress when that Count Mott fellow tried to buy her contract and turn her into his concubine. When Saito came riding in to the rescue, all he really did was save Siesta the trouble of putting arsenic in his tea or her foot to his throat.
on the other side of the world is Codex Alera.Fury crafting is just a different type of magic, its been confirmed in the Codex that the people and some of the Critters are from other worlds, like how stuff from are world goes to Zero No Tsukaima world. Of course this means the Vord are coming, to eat them.
Void Magic is divine magic.Let's review.
Cattleya has a mildly severe case of asthmaShe isn't chronically ill, she just has a medical condition which the technology of her world has no real way of treating. Presumably, she would've been able to live a perfectly normal and active live on Earth, where inhalers and steroids are readily available.