Those who hunt redheads A Ranma 1/2 & Those who hunt Elves & Slayers & Tenchi Muyo crossover
***new version summary***
Certain summon spell is used, but because the caster sneezed when doing it, instead of summoning the Elf Hunters it summons Ranma (During the wedding so he is wearing a tuxedo) Washu ( Young Washu, so she doesn't know Tenchi yet) and Lina ( She had just sealed a certain powerful spell away with a tattoo/seal mix in her back). The trio soon defeats the evil witch, and for different reasons, decide to stay in the Elf world.
Washu is very curious about being in an alternate version of Earth, and doesn't want to leave until she gets enough information and does certain experiments. She is especially interested in Elves, and she had never meet one before and haven't done any experiments on them. She is also very curious about Ranma, not so much about his curse but because he is very strong for being a pure human that can't use magic or has any elacements.
Lina wants to try the magic of this new world to see if she can make her breasts grow.
Ranma wants to stay for a while to get a break from the fiancées, the weirdos, the old ghoul and... you get the idea.
However, there are people (And elves) That aren't happy about those three staying...
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The idea of the "Redheads" team is that they are as overpowered compared to the Elf hunters as the Elf hunters together are to everyone else in the Elf world, however since there are no Elf Hunters in this story, is just a comparison.
Ranma is a better martial artist than Jumpei will ever be, Washu is a genius and Lina has enough power to destroy a city. However there are a few limiters. Washu doesn't have much of her tech with her, and the Elf world is not technologically advanced. Lina can't use the Dragon Slave due to not being a Ruby Eye Shabranigdo in the Elf world. Lina can still use the Ragna Blade. Lina won't use the Giga Slave , as I am taking the lil tibit of the manga where she sealed that spell away. Still Lina fireball is strong enough to destroy a house, and I bet it can even do more damage in a world with as much magic as the Elf world. She can still use some low level black magic, but has to modify the spells to call the Elf world demons power instead.
For Washu is before her daughter is unsealed, so she honesty doesn't have many reasons to return to her world, as she doesn't know Tenchi yet. I am taking the idea that Washu stores some of the "portable" tech in her own pocket dimension so she can it access anywhere. Somewhat like a technological version of the hidden weapon technique. However if something breaks, she may have to take parts from some of the tech she has left to do repairs. Washu doesn't mind that much, as is a challenge, and you know how boring she found her life before Tenchi and having her daughter back. This will get noticeable as the amount of "Washu dolls" will go down from a dozen to just one or two.
For Ranma, is after defeating Saffron and IN the time of wedding, just after he found out Akane knew about the water of man and Happosai drank it. No wonder he doesn't want to return, as he is angry. Of course Washu wants to do experiments on Ranma. and Ranma agrees because he wants a cure to his curse. And Lina is a total fail when it comes to transformation magic.
For Lina is after breaking Hellmaster Fibrizo Mazoku barrier, she had just sealed the Giga Slave, since she almost destroyed the world with it. The seal is over Lina body, so it still works even if she is in the Elf World.
Basically Mistress Celcia Marie Claire sneezes during her summon spell, ending summoning the "redheads" team instead of the Elf Hunters. The redheads easy defeat the evil treat, then after being explained some things, they decide to stay and explore the elf world, despite Celcia protests.
Ranma: Return to my world, for what? So that I keep being treated like a piece of meat and where even the girl I killed for lies to me?
Washu: I don't want to return to my own universe yet, a whole new world where magic rules instead of science must be investigated, I may never get a chance like this again! Plus I never experimented on elfs before.!
Lina: This world seems to have more mana than mine, it would be interesting to see if I can do some of the spells of this world. (And find out if there is a spell than can make my breasts grow!)
Celcia : Are you three insane? You have to return to your own world! You can't stay!
Ranma: Why not? We are heroes, we just defeated the biggest evil this world had to offer, right?
Celcia: Yeah but...
Washu: Now here elf girl, you took us away from our worlds to defeat an evil so great you where powerless against it, think you can boss us around? *A dozen of Washu dolls appear from nowhere and surround Washu
Lina: That reminds me, you haven't paid me yet! * Lina creates a huge fireball and easily holds it with her hand* "Yeah I was right, this world is saturated with mana, I was planing to just do a fireball strong enough to destroy a house!
Celsia: Ehh... well. why don't you stay as guests until we sort this off? You must be hungry after such an intense fight!
Ranma: Free food? I am in!
****
Washu doesn't have her goddess power unlocked, and there s something blocking access to her lab, she might find a way around eventually.
Lina seal was done that way so the seal will work even if she was in another universe. Also she has been mind controlled before, so she got a tattoo in her back to seal the Giga slade. After all since she is the only one who can do that spell, it makes sense to put the seal on herself. Also Washu was in Lina universe at some point, so that might explain some very slight differences this Lina has.
To avoid the Red trio overpowering everything and everyone, the Judge will end making a deal with certain demon priest. And there will be some treats they will have to face that will be a challenge. Also while the trio is almost unbeatable together, they can be defeated separately.
Also I can see Ranma having to rescue people from being Washu experiments, and finally having to do a compromise of sorts. And Lina getting frustrated that she doesn't get any decent fights, even without having dark magic (At first, she may copy some dark magic spells later). After all Lina is used to Dragon slave her way, at least in the anime.
Ranma: Okay how about this, you can experiment on the bad guys!
Lina: But I wanna blow up the bad guys!
Washu: But limiting myself to the so called bad guys severely limits my research!
Ranma: We are guests in this world, we should try to not be that annoying. And Lina, we defeated a a dragon this morning.
Lina: It was just a dragon! I barely got tired. *Lina of course forgot to say that it was only easy because her magic was much stronger in the Elf world, to the point that not being able to use dark magic was barely annoying.
Washu: Could you two please try to be more careful next time? There where barely any pieces left to study.
Ranma: Okay, how about this: You can experiment on the bad guys, and in people who accepts being experimented on in exchange of money?
Linas: What? You aren't wasting my money on your experiments!
Washu: Is our money, but don't worry that much about it. Using my technology I can easily craft something that in this world is as valuable as gold.
Lina: You can do alchemy? And whats will you do?
Washu: I noticed that in this world toiler paper is rare and valuable, and there are plenty of trees around I can use to make it.
Ranma: What? Really? You aren't just gonna make the gold? I am impressed.
*Washu glares at Ranma *"I am well aware that making gold not only would be unethical, but also cause a lot of trouble. Besides I mastered the process to turn several kind of metals to gold long ago, it was barely a challenge. That's why I decided to try my hand on genetics. By the way, I could give you several enlacements Ranma-chan..."
Ranma: No! Why you are always picking me for the experiments?
Washu: Because Miss Lina Inverse tends to destroy a lot more of my equipment than you do when I try. Besides I have studied human sorceress before, there is nothing special about her that I haven't seen before.
Lina: Are you saying I am just a plan ordinary girl?
Washu: Actually, you are the second most powerful human sorcerer I have seen in a long time, are you related to Luna inverse?
*Lina then hides behind Ranma, is strange to see the small redhead look so scared* "You... you know my sister?"
"Yes, I was in your world some time ago, it didn't have as much mana as this one, and I wasn't able to find any elf to study, while this world is full of elves. However I only got there by accident, a malfunction on a experimental teleporter combined with a time traveler demon weakening the boundaries of your world. By what you told me, the masoku barrier is gone, so if I ever try to visit again, hopefully it won't nearly cause the end of the world like last time. I admit playing hero with your sister was fun, but it was also a bit stressful.
"Wait... are you saying that you are that 'Washu the Golem maker' people keep confusing me with when I starter my career?" Lina now sounded curious
"I wasn't aware I had become famous in your world, but after all I am the most amazing genius in at least three universes!", four Washu dolls appeared out of nowhere and created fireworks while they held a banner that said "That's right! Washu-chan is the best that ever was!"