#dn x h2o

[gh0stbeeee]

Hey, so remember that death note and h2o just add water crossover?

I drew it. Like, four months later.

Oh, and mermen have blue tails in this universe. Jsyk.

They are besties.

Link to AU explanation.

[gh0stbeeee]

First chapter of my silly death note and h2o just add water crossover, please r&r u3u it would make me very happy

[gh0stbeeee]

tell us more about the death note/h2o crossover please 👀

Warning, tiny bit of dark content near the end. But like, it's death note sooo...

Characters:

Rikki = Light

Emma = L

Cleo = Misa

Lewis = Matsuda

Miriam = Kiyomi

Zane = Mikami

Kim = Sayu

Elliot = Near, Mello, Matt

Miss Chatham = Ryuk

Now, despite character assignments I'm still giving cannon siblings. So Sayu is still Light's little sister, the wammy boys are L's etc. The roles are based off of personality, so not everything fits and I'll move things around. Like yeah, Ryuk is Chatham because him as a weird old ocean man with ominous advice is hysterical.

Plot:

Starts of pretty similar, will diverge.

Light and Misa go to high school at the Gold Coast, Australia. Light's mother is a marine biologist that works at a nearby institute, while his father still works in Japan as the chief of the NPA.

Misa lives there with her parents, and is close with Light. Ie, she follows him around and he puts up with her. She is also good friends with Matsuda, who studies with her occasionally.

L is the new transfer kid, who Light doesn't like because he keeps on challenging his intellect. Plus he's weird.

So of course Light gets put in a group biology project with him, along with Misa.

While brainstorming where to research, L asks about Mako Island. Light says the Island and the waters around it are too dangerous. L (in essence) calls him chicken.

That weekend, the two, and an unwilling Misa, take Sachiko's boat out to Mako. And the gas tank leaks. So, they row the short rest of the way to Mako.

Of course, there's no phone service, and no one will look for them until after the weekend. Light and L bicker on the beach until Misa makes them go setup camp on the shore, then look for higher ground to try and get reception.

While looking, Misa falls in a hole. L goes in to help her. Light falls into trying to lend them the rope. Stuck down there, they look for an exit, and find the moon pool.

After oooing and aweing, they figure out the pool is connected to the ocean due to tidal rings. They plan to swim out after L scopes it out. Problem, Misa can't swim.

But after encouraging words and promises to help her, they all get in the pool as the full moon rises over the mouth of the volcano.

Weird bubbles happen.

But they ignore it, swimming out to the ocean and back to their camp near shore, getting dry and going to sleep.

The next morning they go into the shallow water to look for samples for their project since they have nothing else to do.

And they all turn into fish.

They freak, Misa screams, it's a mess. They all crawl onto shore to try and figure this out, and as soon as they're dry, they turn back to normal.

Misa refuses to touch water again. L needs time to process what just happened. But Light, the little getter he is, goes for a swim.

And he loves it, it's the most awesome swimming experience he's ever had. Way better than swimming as a clumsy human. He convinces L, then Misa, and after they all start to get used to their tails, they're having the time of their lives.

Now, they can push the boat back to the mainland, and say that "luckily" the gas tank leaked right as they were getting back.

They get what they need for the project, and like the dorky 16 year olds they are, swear a pact to never tell anyone about this.

(Touta finds out a week later when Misa tried to go to a pool party.)

Miscellaneous/Plot Points

Misa shows up at school the following day in total beach girl aesthetic, including beach curls, shell/pearl jewelry, flowy clothes and wedges. L nearly smacks her upside the head. Light does.

They turn the moon pool into their own little hangout! Misa gets them all to buy fairy lights, tapestries, blankets, pillows, and even shelves for all of their stuff, along with a crap ton of batteries for the lights. It turns out surprisingly cozy.

They all hang out a lot for obvious reasons, which puts a chip in Kiyomi and Teru's shoulder. They've tried to be close to Light to no avail, but suddenly this L guy, and Misa who is now more than tolerated, are suddenly thick as thieves with him! They get bitchy with the two, especially L.

Misa made them all fishing net pouch-belts to put cool things they find during swims in.

The pool starts to look like a little treasure trove, since there is a LOT of cool stuff to find and the bottom of the ocean.

With the sheer amount of pearls and mother of pearl they find, Light starts to make accessories out of it. Misa is overjoyed and accepts the items with joy. L likes to watch Light tinker. Light doesn't mind him there.

The three, especially Light develop a superiority complex in regards to other people. It's based in insecurity about not being human anymore, but they do feel superior because of their powers.

L goes research nuts. A large portion of the moon pool wall looks like a mermaid conspiracy board, he wants to find any possible explanation. Light helps where he can, impressed with L's brain.

L was the first to find his powers, when he froze Kiyomi and Mikami to a wet sidewalk. Next was Light, after he boiled his annoying history teachers coffee all over his desk. Misa found her power a few days after, accidentally flooding her bathroom when she tried to bath.

The first full moon was... not good. Ryuk randomly showed up at the beach to warn Light, who discarded his words as meaningless blabbering. The three of them went moon crazy, and swam in the ocean until Misa got caught in an illegal fishing boat net.

The next morning, the boat was found sunken and destroyed, the charred and frozen bodies of the small were found with it.

None of them swam for three days.

But uh, yeah! They're a little pod, very protective of eachother :)

Misa likes to find starfish that match their hair colours and stick them on the boys' hair. They don't come off :)

It's the wammy boys that notice something up (they including Sayu are 10 btw) and they end up finding some of L's research. Watari just said it was probably a hobby when they showed him, but when they go to Sayu and they find a type of shell that is only found at diving depth in Light's room, they begin to think their theory of mermaids is warranted.

The trio is annoyed by the snoopyness, and now that they were technically murderers there was another level of urgency to keep this secret.

Unfortunately, mermaid hunters and scientists do start showing up, as "sitings" have increased due to underwater cameras.

Stakes rise and the three begin to ponder the benefits of staying. And the risks of going.

They start sabotaging. Finding the groups, their plans and evidence under the guise of mermaid enthusiasts. It works mostly, except for one group that keeps coming back. L finds himself impressed with how easily Light can manipulate them.

The three start going farther away during swims, able to go to places like Fiji or the Mediterranean in under an hour due to their extraordinary tails.

There is relationship drama. Misa is realizing her crush on Light is going no where, and he and L have started to become closer. Eventually they get over it, but lawlight is end game.

Kiyomi's jealousy deflates over time, and she begins to appreciate Misa without Light clouding her mind ;)

That's all for now I think! BTW, blue tails for mermen isn't on a whim, it's cannon in the h2o sequel Mako mermaids :)

[gh0stbeeee]

Actually, discard what I said about my dn x h2o endgame in my explanation post, lawlightmane for this au is where it's at. They're too cute.

[gh0stbeeee]

I'm actually devastated I had nearly all of my dn x h2o crossover typed out but then my stupid phone died at 5% RIGHT WHEN I WAS ABOUT TO PLUG IT IN and I lost it all