"Infinity Heart" is a nonprofit Fanfiction Shared Universe and an AU to "BBHōIS" and the Kingdom Hearts series. You know, just for funsies (bring your singles). I don't own Kingdom Hearts series, Re:Zero, or any other official media that will be used. I only own OC characters, ideas, terminology, and mythos. Some Characters will be OoC and stories will be AU. Like I said, this is a fanfiction for entertainment so enjoy and review.

Infinity Hearts: The Zeroverse

Chapter One

Apples and Roots

Log #1: I have traveled to many parts of my universe and others. Many of them are either the same or completely different. But When it comes to my home universe. There is one defining fact, all the events remain the same until Subaru comes. Once a Subaru has come to this world, events start to play completely differently.

I did not question this until I came upon the underverse. A boy/girl by the name of Frisk has a similar power to Subaru, however where he/she has to die to use this power while Frisk can do it whenever.

The true difference comes with the AUs, it is not just Frisk that changes, but everyone. Most of the biggest changes are Sans, a skeleton that is sometimes know about this child resets or has something like a dejavu. This is interesting because only when Subaru comes is when things change. But why is that?

Log #2: I have searched through many parts of what I shall call the Zeroverse. I have chosen this name because of the Subarus' Return By Death nature of resetting events to zero. I searched many ways of trying to understand this universe, but never seem to find it.

Log #3: I have stumbled into a new world. This one is a superhero world like the Dekuverse, except that this world Heroes are still vigilantes. I learned that it is called DC. I met a person known as Black Adam, he has told me how his world worked. There is a positive and negative, the one we are in is the positive.

He says that the Negative worlds are considered mistakes, worlds born from nightmares. Hmm, interesting. From his knowledge, the only way to access this part of the universe is through a key of sorts.

Log #4: I have built a machine that harnesses the witch genes, dark matter, and demonic energy. My belief that the Zeroverse is like that of DC. There is a Positive and Negative Zone, however ours is like an apple tree. The above ground part is the Positive Zone.

Each leaf is an Original, IF, Genderbender, and different Nationality of Subaru. The apples, on the other hand, are worlds where Subaru is completely different from their original. The red apples are the good Subarus while the green are the evil ones.

But what about the roots? The underground part of the tree? As I have said, you can easily take a leaf and apple from the tree with your hands, but the roots? You are going to need a shovel or something stronger. If the Negative Zone is the roots, the barrier is the hard ground, than my machine is the shovel.

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Play Mephiles Theme

Chaos Note #1: WASN'T THAT interesting! I MOST FREE THIS ZONE FOR A UNIVERSES TO SEE! GREETINGS VIEWERS! FOR I AM ATLAS MAOU! IT IS A pleasure TO MEET Y'ALL! NOW THEN, INEED A BASE OF OPERATIONS, BUT WHERE? I KNOW! MY ORIGINAL LUGNICA WORLD!

Chaos Note #2: CONQUER IT WAS QUITE EASY AND disappointing, WELP OFF TO ANOTHER!

Chaos Note #3: OHO! THIS ONE IS QUITE INTERESTING! IN THIS ONE A FEMALE DARK ELF , THAT DRESS LIKE A BOY, HAS BETRAYED HER MASTER FOR A SMALL HUMAN BOY! LOVE IS QUITE DEADLY! MAYBE I CAN…"PERSUADE" HER?

Chaos Note #4: I HAVE STUMBLED UPON MANY OTHER HORRIFYING WORLDS! ONE OF WISH IS ON THE VERGE OF THE APOCALYPSE! I WAS ABLE TO TRIKE THIS BOY INTO MAKING A DEAL WITH ME BY PROMISING HIM THAT I WOULD KEEP HER BELOVED SAFE! WELL, LETS JUST SAY THAT SHE IS NOW A GIANT DRAGON THAT IS NOW TRAPPED IN HELL. EVEN MORE FUNNY IS THAT THE BOY TRANSFORMED INTO A DEMON CALLED AMON AND TRIED TO KILL ME IN RETRIBUTION!

Chaos Note #5: I FIND THIS WORLD FUN! WATCHING THIS BOY TRYING TO PROVE THIS CAT IS AN ALIEN AND PROTECTING HIS FAMILY! WELL HE SUCCEEDS IN THE PROTECTING, BUT IT IS hilarious OF HOW ALWAYS LOSES IN SOMEWAY! I'M GOING TO KEEP LOOKING AT THIS!

Chaos Note #6: ...BEEN WATCHING THIS FOR A WHILE. IT HAS GOTTEN boring. THE ONLY THING THAT SEEMS TO HAPPEN IS TO THIS BOY COOP. IT HAS GOTTEN SO PITIFUL THAT I ALMOST STOPPED SMILING. LET SPICE THINGS UP!

Chaos Note #7: AHAHAHAHAHAHAHAHAHA! NOW THIS IS entertainment! AFTER TORTURING THE BOY, THE BOTH OF US BROUGHT DEVASTATION TO THE WORLD! THE LOOK OF HIS FORMER "FRIENDS" AND FAMILY WAS priceless! THOUGH THEY SUDDENLY DISAPPEARED ALONG WITH THE CAT, I WONDER WHERE THEY WENT? OH WELL! AT LEAST I HAVE ANOTHER WORLD IN MY HANDS!

Chaos Note #8: FOUND THIS WORLD WITH A ERCRAZY GREEN HAIRED LOLI! THIS GIRL HAS BEEN A RULER FOR A FEW DAYS AND IT HAS ALREADY GONE DOWN HILL! I love THIS GIRL! DECIDED TO ADD HER AND THIS WORLD TO MY TERRITORY!

Chaos Note #9: BEEN QUITE A WHILE! I ADDED FIVE MORE PEOPLE TO MY ROGUE GALLERY! ALONG WITH SOME WORLDS! WITH THE HELP OF MY SECRETARY AURA, I HAVE ESTABLISHED QUITE AN EMPIRE! MY HEAD SCIENTIST GASTER HAS BEEN QUITE HELPFUL WITH MY MACHINE!

Chaos Note #10: HMM, THIS IS SOMETHING! IT SEEMS THAT I NEED SOMETHING CALLED A PRINCESS HEART? IT IS SAID THAT THOSE THAT ARE FEMALE AND ARE PURE AND INNOCENT CAN HAVE THIS PRINCESS HEART. THAT IS KINDA SEXIST, I MEAN THERE ARE MEN MORE PURE THAN THE PRINCESS. I THINK I FOUND MY CANDIDATE! I JUST NEED TO FIND THE RIGHT EMILIA! BUT HOW? HMMMM….OH! I WILL TORTURE THEM AND SEE IF THEIR HEARTS DARKEN FROM IT! WONDERFUL IDEAL!

Chaos Note #11: BEEN TORTURING THESE EMILIAS. NO LUCK. BUT VERY FUN!

Chaos Note #12: MET SOMEONE BY THE NAME OF XEHANORT! WHAT A FOOL! THE OTHERS THINK MY GOAL IS TO DARKEN A PRINCESS HEART! WELL I DID TELL THEM THAT AND WOULD LIKE TO DO THE IMPOSSIBLE! OH THIS IS GOING TO BE FUN!

Chaos Note #13: WE ARE HEADING TO La Royaumé des Magie! THERE SUPPOSED TO BE A PRINCESS HEART THERE! I WENT WAY EARLY THAN EVERYONE ELSE! GOING TO START MY MAYHEM, THROUGH RELIGION! LET GET THIS SHOW ON THE ROAD!

Song End

Chapter One Complete